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32201200020 = 22351127276101
BaseRepresentation
bin11101111111010101…
…110101000110010100
310002010011020110010210
4131333111311012110
51011422001400040
622443143245420
72216655453423
oct357725650624
9102104213123
1032201200020
1112724813200
1262a8149870
133062426a12
1417b69192ba
15c86ed1480
hex77f575194

32201200020 has 144 divisors (see below), whose sum is σ = 99257768064. Its totient is φ = 7794336000.

The previous prime is 32201200007. The next prime is 32201200027. The reversal of 32201200020 is 2000210223.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 32201199969 and 32201200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32201200027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5274970 + ... + 5281070.

It is an arithmetic number, because the mean of its divisors is an integer number (689290056).

Almost surely, 232201200020 is an apocalyptic number.

32201200020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32201200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49628884032).

32201200020 is an abundant number, since it is smaller than the sum of its proper divisors (67056568044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32201200020 is a wasteful number, since it uses less digits than its factorization.

32201200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6862 (or 6849 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 32201200020 its reverse (2000210223), we get a palindrome (34201410243).

It can be divided in two parts, 32201 and 200020, that added together give a triangular number (232221 = T681).

The spelling of 32201200020 in words is "thirty-two billion, two hundred one million, two hundred thousand, twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 121 132 165 220 242 330 363 484 605 660 726 727 1210 1452 1454 1815 2181 2420 2908 3630 3635 4362 6101 7260 7270 7997 8724 10905 12202 14540 15994 18303 21810 23991 24404 30505 31988 36606 39985 43620 47982 61010 67111 73212 79970 87967 91515 95964 119955 122020 134222 159940 175934 183030 201333 239910 263901 268444 335555 351868 366060 402666 439835 479820 527802 671110 738221 805332 879670 1006665 1055604 1319505 1342220 1476442 1759340 2013330 2214663 2639010 2952884 3691105 4026660 4429326 4435427 5278020 7382210 8858652 8870854 11073315 13306281 14764420 17741708 22146630 22177135 26612562 44293260 44354270 48789697 53225124 66531405 88708540 97579394 133062810 146369091 195158788 243948485 266125620 292738182 487896970 536686667 585476364 731845455 975793940 1073373334 1463690910 1610060001 2146746668 2683433335 2927381820 3220120002 5366866670 6440240004 8050300005 10733733340 16100600010 32201200020