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102976096609 = 978611052269
BaseRepresentation
bin101111111100111011…
…0101000100101100001
3100211210120200201022001
41133321312220211201
53141343340042414
6115150115044001
710303562244001
oct1377166504541
9324716621261
10102976096609
113a74335a581
1217b5a5a0601
139931274c59
144dac404001
152a2a65b074
hex17f9da8961

102976096609 has 4 divisors (see below), whose sum is σ = 102977246740. Its totient is φ = 102974946480.

The previous prime is 102976096603. The next prime is 102976096627. The reversal of 102976096609 is 906690679201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 906690679201 = 4312103690671.

It can be written as a sum of positive squares in 2 ways, for example, as 70514147025 + 32461949584 = 265545^2 + 180172^2 .

It is a cyclic number.

It is not a de Polignac number, because 102976096609 - 211 = 102976094561 is a prime.

It is a super-2 number, since 2×1029760966092 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102976096609.

It is not an unprimeable number, because it can be changed into a prime (102976096603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428274 + ... + 623995.

It is an arithmetic number, because the mean of its divisors is an integer number (25744311685).

Almost surely, 2102976096609 is an apocalyptic number.

It is an amenable number.

102976096609 is a deficient number, since it is larger than the sum of its proper divisors (1150131).

102976096609 is an equidigital number, since it uses as much as digits as its factorization.

102976096609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150130.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The spelling of 102976096609 in words is "one hundred two billion, nine hundred seventy-six million, ninety-six thousand, six hundred nine".

Divisors: 1 97861 1052269 102976096609