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189831226100 = 225214711290491
BaseRepresentation
bin1011000011001011010…
…0101010001011110100
3200010222122221110002212
42300302310222023310
511102233243213400
6223112433552552
716500123540605
oct2606264521364
9603878843085
10189831226100
117356386192a
123095a115758
1314b9368b7b9
14928b787dac
154e10879335
hex2c32d2a2f4

189831226100 has 36 divisors (see below), whose sum is σ = 412214116608. Its totient is φ = 75880812000.

The previous prime is 189831226069. The next prime is 189831226129. The reversal of 189831226100 is 1622138981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 498146 + ... + 792345.

It is an arithmetic number, because the mean of its divisors is an integer number (11450392128).

Almost surely, 2189831226100 is an apocalyptic number.

189831226100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189831226100 is an abundant number, since it is smaller than the sum of its proper divisors (222382890508).

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

189831226100 is a wasteful number, since it uses less digits than its factorization.

189831226100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291976 (or 1291969 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 189831226100 in words is "one hundred eighty-nine billion, eight hundred thirty-one million, two hundred twenty-six thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1471 2942 5884 7355 14710 29420 36775 73550 147100 1290491 2580982 5161964 6452455 12904910 25809820 32262275 64524550 129049100 1898312261 3796624522 7593249044 9491561305 18983122610 37966245220 47457806525 94915613050 189831226100