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102912119210 = 2510291211921
BaseRepresentation
bin101111111011000001…
…0100101000110101010
3100211122010022022210202
41133312002211012222
53141231000303320
6115135511512202
710302154402655
oct1376602450652
9324563268722
10102912119210
113a71023239a
1217b41088662
139920c347c4
144da3b0c89c
152a24c1eb75
hex17f60a51aa

102912119210 has 8 divisors (see below), whose sum is σ = 185241814596. Its totient is φ = 41164847680.

The previous prime is 102912119209. The next prime is 102912119263. The reversal of 102912119210 is 12911219201.

It can be written as a sum of positive squares in 2 ways, for example, as 95321005081 + 7591114129 = 308741^2 + 87127^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5145605951 + ... + 5145605970.

Almost surely, 2102912119210 is an apocalyptic number.

102912119210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102912119210 is a deficient number, since it is larger than the sum of its proper divisors (82329695386).

102912119210 is a wasteful number, since it uses less digits than its factorization.

102912119210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10291211928.

The product of its (nonzero) digits is 648, while the sum is 29.

Subtracting from 102912119210 its reverse (12911219201), we obtain a palindrome (90000900009).

The spelling of 102912119210 in words is "one hundred two billion, nine hundred twelve million, one hundred nineteen thousand, two hundred ten".

Divisors: 1 2 5 10 10291211921 20582423842 51456059605 102912119210