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131859742 = 2710193253
BaseRepresentation
bin1111101110000…
…00010100011110
3100012010011120011
413313000110132
5232224002432
621030113434
73160534510
oct767002436
9305104504
10131859742
11684821a3
12381ab87a
132141a121
1413725bb0
15b899847
hex7dc051e

131859742 has 16 divisors (see below), whose sum is σ = 228285792. Its totient is φ = 55951200.

The previous prime is 131859737. The next prime is 131859743. The reversal of 131859742 is 247958131.

It is a junction number, because it is equal to n+sod(n) for n = 131859695 and 131859704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131859743) 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, 45213 + ... + 48040.

It is an arithmetic number, because the mean of its divisors is an integer number (14267862).

Almost surely, 2131859742 is an apocalyptic number.

131859742 is a deficient number, since it is larger than the sum of its proper divisors (96426050).

131859742 is a wasteful number, since it uses less digits than its factorization.

131859742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93363.

The product of its digits is 60480, while the sum is 40.

The square root of 131859742 is about 11483.0197247936. The cubic root of 131859742 is about 508.9839337322.

The spelling of 131859742 in words is "one hundred thirty-one million, eight hundred fifty-nine thousand, seven hundred forty-two".

Divisors: 1 2 7 14 101 202 707 1414 93253 186506 652771 1305542 9418553 18837106 65929871 131859742