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100112310231 = 31031993162563
BaseRepresentation
bin101110100111100101…
…0001001111111010111
3100120101222222021220220
41131033022021333113
53120012222411411
6113554014125423
710142606411403
oct1351712117727
9316358867826
10100112310231
113950387547a
121749b4b0873
139595b734bb
144bb9d38103
15290e021b06
hex174f289fd7

100112310231 has 16 divisors (see below), whose sum is σ = 134847488256. Its totient is φ = 66059994816.

The previous prime is 100112310229. The next prime is 100112310247. The reversal of 100112310231 is 132013211001.

It is a happy number.

It is not a de Polignac number, because 100112310231 - 21 = 100112310229 is a prime.

It is a super-2 number, since 2×1001123102312 (a number of 23 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 100112310231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100112310251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534556 + ... + 697118.

It is an arithmetic number, because the mean of its divisors is an integer number (8427968016).

Almost surely, 2100112310231 is an apocalyptic number.

100112310231 is a deficient number, since it is larger than the sum of its proper divisors (34735178025).

100112310231 is a wasteful number, since it uses less digits than its factorization.

100112310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164662.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 100112310231 its reverse (132013211001), we get a palindrome (232125521232).

The spelling of 100112310231 in words is "one hundred billion, one hundred twelve million, three hundred ten thousand, two hundred thirty-one".

Divisors: 1 3 103 309 1993 5979 162563 205279 487689 615837 16743989 50231967 323988059 971964177 33370770077 100112310231