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102051131 = 7139111231
BaseRepresentation
bin1100001010100…
…10110100111011
321010000201211112
412011102310323
5202111114011
614043150535
72346264110
oct605226473
9233021745
10102051131
1152672586
122a21544b
13181b12b0
14d7a6907
158e5c58b
hex6152d3b

102051131 has 16 divisors (see below), whose sum is σ = 125841408. Its totient is φ = 80589600.

The previous prime is 102051097. The next prime is 102051133. The reversal of 102051131 is 131150201.

It is not a de Polignac number, because 102051131 - 26 = 102051067 is a prime.

It is a super-2 number, since 2×1020511312 = 20828866676758322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102051133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82286 + ... + 83516.

It is an arithmetic number, because the mean of its divisors is an integer number (7865088).

Almost surely, 2102051131 is an apocalyptic number.

102051131 is a deficient number, since it is larger than the sum of its proper divisors (23790277).

102051131 is a wasteful number, since it uses less digits than its factorization.

102051131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 102051131 is about 10102.0359829096. The cubic root of 102051131 is about 467.3109319637.

The spelling of 102051131 in words is "one hundred two million, fifty-one thousand, one hundred thirty-one".

Divisors: 1 7 13 91 911 1231 6377 8617 11843 16003 82901 112021 1121441 7850087 14578733 102051131