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32111213210020 = 2257317398897053
BaseRepresentation
bin1110100110100011110010…
…11101001110100110100100
311012200210122122211001002201
413103101321131032212210
513202102231040210040
6152143404313144244
76522646540522210
oct723217135164644
9135623578731081
1032111213210020
11a26031a7a065a
1237274503bb084
1314bc0c763b669
147d02961cb940
153aa446648a9a
hex1d347974e9a4

32111213210020 has 48 divisors (see below), whose sum is σ = 79552941124608. Its totient is φ = 10654411754880.

The previous prime is 32111213210017. The next prime is 32111213210023. The reversal of 32111213210020 is 2001231211123.

It is an interprime number because it is at equal distance from previous prime (32111213210017) and next prime (32111213210023).

It is a super-2 number, since 2×321112132100202 (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32111213210020.

It is not an unprimeable number, because it can be changed into a prime (32111213210023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3699444187 + ... + 3699452866.

It is an arithmetic number, because the mean of its divisors is an integer number (1657352940096).

Almost surely, 232111213210020 is an apocalyptic number.

It is an amenable number.

32111213210020 is an abundant number, since it is smaller than the sum of its proper divisors (47441727914588).

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

32111213210020 is a wasteful number, since it uses less digits than its factorization.

32111213210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7398897100 (or 7398897098 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 32111213210020 its reverse (2001231211123), we get a palindrome (34112444421143).

The spelling of 32111213210020 in words is "thirty-two trillion, one hundred eleven billion, two hundred thirteen million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 31 35 62 70 124 140 155 217 310 434 620 868 1085 2170 4340 7398897053 14797794106 29595588212 36994485265 51792279371 73988970530 103584558742 147977941060 207169117484 229365808643 258961396855 458731617286 517922793710 917463234572 1035845587420 1146829043215 1605560660501 2293658086430 3211121321002 4587316172860 6422242642004 8027803302505 16055606605010 32111213210020