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102188613 = 338388937
BaseRepresentation
bin1100001011101…
…00011001000101
321010021201102110
412011310121011
5202130013423
614050131233
72350405662
oct605643105
9233251373
10102188613
11527568aa
122a280b19
131822ba47
14d800a69
158e88193
hex6174645

102188613 has 8 divisors (see below), whose sum is σ = 136608768. Its totient is φ = 67947104.

The previous prime is 102188599. The next prime is 102188641. The reversal of 102188613 is 316881201.

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

It is a cyclic number.

It is not a de Polignac number, because 102188613 - 26 = 102188549 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102188813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43320 + ... + 45617.

It is an arithmetic number, because the mean of its divisors is an integer number (17076096).

Almost surely, 2102188613 is an apocalyptic number.

It is an amenable number.

102188613 is a deficient number, since it is larger than the sum of its proper divisors (34420155).

102188613 is an equidigital number, since it uses as much as digits as its factorization.

102188613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89323.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 102188613 is about 10108.8383605635. The cubic root of 102188613 is about 467.5206896007.

The spelling of 102188613 in words is "one hundred two million, one hundred eighty-eight thousand, six hundred thirteen".

Divisors: 1 3 383 1149 88937 266811 34062871 102188613