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30201220020 = 22352953327491
BaseRepresentation
bin11100001000001000…
…100000101110110100
32212221202220221100110
4130020020200232310
5443323003020040
621512500543020
72116262064066
oct341010405664
985852827313
1030201220020
111189888a674
125a2a3b1a70
132b03c887ba
141667067736
15bbb624980
hex708220bb4

30201220020 has 96 divisors (see below), whose sum is σ = 89130222720. Its totient is φ = 7629207040.

The previous prime is 30201219977. The next prime is 30201220033. The reversal of 30201220020 is 2002210203.

It is a super-2 number, since 2×302012200202 (a number of 22 digits) contains 22 as substring.

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 = 30201219978 and 30201220005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71526 + ... + 255965.

It is an arithmetic number, because the mean of its divisors is an integer number (928439820).

Almost surely, 230201220020 is an apocalyptic number.

30201220020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30201220020 is an abundant number, since it is smaller than the sum of its proper divisors (58929002700).

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

30201220020 is a wasteful number, since it uses less digits than its factorization.

30201220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327585 (or 327583 counting only the distinct ones).

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

Adding to 30201220020 its reverse (2002210203), we get a palindrome (32203430223).

The spelling of 30201220020 in words is "thirty billion, two hundred one million, two hundred twenty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 53 58 60 87 106 116 145 159 174 212 265 290 318 348 435 530 580 636 795 870 1060 1537 1590 1740 3074 3180 4611 6148 7685 9222 15370 18444 23055 30740 46110 92220 327491 654982 982473 1309964 1637455 1964946 3274910 3929892 4912365 6549820 9497239 9824730 17357023 18994478 19649460 28491717 34714046 37988956 47486195 52071069 56983434 69428092 86785115 94972390 104142138 113966868 142458585 173570230 189944780 208284276 260355345 284917170 347140460 503353667 520710690 569834340 1006707334 1041421380 1510061001 2013414668 2516768335 3020122002 5033536670 6040244004 7550305005 10067073340 15100610010 30201220020