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101872104243 = 37131919639889
BaseRepresentation
bin101111011100000001…
…1001111001100110011
3100201221122100002110220
41132320003033030303
53132113224313433
6114444400424123
710234325412240
oct1367003171463
9321848302426
10101872104243
113a227168798
12178b0918043
1397b6627030
144d059465c7
1529b37872b3
hex17b80cf333

101872104243 has 32 divisors (see below), whose sum is σ = 175973414400. Its totient is φ = 50906589696.

The previous prime is 101872104239. The next prime is 101872104251. The reversal of 101872104243 is 342401278101.

It is not a de Polignac number, because 101872104243 - 22 = 101872104239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101872104233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9814758 + ... + 9825131.

It is an arithmetic number, because the mean of its divisors is an integer number (5499169200).

Almost surely, 2101872104243 is an apocalyptic number.

101872104243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

101872104243 is a deficient number, since it is larger than the sum of its proper divisors (74101310157).

101872104243 is a wasteful number, since it uses less digits than its factorization.

101872104243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19639931.

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 101872104243 in words is "one hundred one billion, eight hundred seventy-two million, one hundred four thousand, two hundred forty-three".

Divisors: 1 3 7 13 19 21 39 57 91 133 247 273 399 741 1729 5187 19639889 58919667 137479223 255318557 373157891 412437669 765955671 1119473673 1787229899 2612105237 4851052583 5361689697 7836315711 14553157749 33957368081 101872104243