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102164231 = 1353148279
BaseRepresentation
bin1100001011011…
…10011100000111
321010020110222102
412011232130013
5202123223411
614045422315
72350244621
oct605563407
9233213872
10102164231
115273a554
122a26a99b
1318220910
14d7d5c11
158e80d3b
hex616e707

102164231 has 8 divisors (see below), whose sum is σ = 112099680. Its totient is φ = 92525472.

The previous prime is 102164221. The next prime is 102164239. The reversal of 102164231 is 132461201.

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

It is not a de Polignac number, because 102164231 - 214 = 102147847 is a prime.

It is a super-2 number, since 2×1021642312 = 20875060191642722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102164239) 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, 73451 + ... + 74828.

It is an arithmetic number, because the mean of its divisors is an integer number (14012460).

Almost surely, 2102164231 is an apocalyptic number.

102164231 is a deficient number, since it is larger than the sum of its proper divisors (9935449).

102164231 is a wasteful number, since it uses less digits than its factorization.

102164231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148345.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 102164231 is about 10107.6323142465. The cubic root of 102164231 is about 467.4835034739.

The spelling of 102164231 in words is "one hundred two million, one hundred sixty-four thousand, two hundred thirty-one".

Divisors: 1 13 53 689 148279 1927627 7858787 102164231