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112102131 = 3172718111
BaseRepresentation
bin1101010111010…
…00101011110011
321210221101012210
412223220223303
5212144232011
615042423203
72530565241
oct653505363
9253841183
10112102131
1158307a99
1231661b03
131a2c012b
1410c61791
159c956a6
hex6ae8af3

112102131 has 16 divisors (see below), whose sum is σ = 158865408. Its totient is φ = 70070400.

The previous prime is 112102129. The next prime is 112102163. The reversal of 112102131 is 131201211.

It is not a de Polignac number, because 112102131 - 21 = 112102129 is a prime.

It is a super-2 number, since 2×1121021312 = 25133775549482322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (112102121) 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, 9766 + ... + 17876.

It is an arithmetic number, because the mean of its divisors is an integer number (9929088).

Almost surely, 2112102131 is an apocalyptic number.

112102131 is a deficient number, since it is larger than the sum of its proper divisors (46763277).

112102131 is a wasteful number, since it uses less digits than its factorization.

112102131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8402.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 112102131 is about 10587.8293809449. The cubic root of 112102131 is about 482.1749263215.

Adding to 112102131 its reverse (131201211), we get a palindrome (243303342).

The spelling of 112102131 in words is "one hundred twelve million, one hundred two thousand, one hundred thirty-one".

Divisors: 1 3 17 51 271 813 4607 8111 13821 24333 137887 413661 2198081 6594243 37367377 112102131