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131102642 = 2115959211
BaseRepresentation
bin1111101000001…
…11011110110010
3100010200201000102
413310013132302
5232030241032
621001552402
73151232306
oct764073662
9303621012
10131102642
11680053a0
1237aa5702
1321213638
14135a9d06
15b79a362
hex7d077b2

131102642 has 8 divisors (see below), whose sum is σ = 214531632. Its totient is φ = 59592100.

The previous prime is 131102611. The next prime is 131102659. The reversal of 131102642 is 246201131.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2979584 + ... + 2979627.

It is an arithmetic number, because the mean of its divisors is an integer number (26816454).

Almost surely, 2131102642 is an apocalyptic number.

131102642 is a deficient number, since it is larger than the sum of its proper divisors (83428990).

131102642 is a wasteful number, since it uses less digits than its factorization.

131102642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5959224.

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

The square root of 131102642 is about 11450.0062008717. The cubic root of 131102642 is about 508.0079178091.

Adding to 131102642 its reverse (246201131), we get a palindrome (377303773).

The spelling of 131102642 in words is "one hundred thirty-one million, one hundred two thousand, six hundred forty-two".

Divisors: 1 2 11 22 5959211 11918422 65551321 131102642