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131412042 = 23243169783
BaseRepresentation
bin1111101010100…
…11000001001010
3100011021102102200
413311103001022
5232120141132
621012341030
73153661326
oct765230112
9304242380
10131412042
11681a68a3
1238014776
13212c1408
141364a986
15b80bd7c
hex7d5304a

131412042 has 24 divisors (see below), whose sum is σ = 291349344. Its totient is φ = 42785064.

The previous prime is 131412031. The next prime is 131412059. The reversal of 131412042 is 240214131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84118 + ... + 85665.

It is an arithmetic number, because the mean of its divisors is an integer number (12139556).

Almost surely, 2131412042 is an apocalyptic number.

131412042 is an abundant number, since it is smaller than the sum of its proper divisors (159937302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131412042 is a wasteful number, since it uses less digits than its factorization.

131412042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169834 (or 169831 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 131412042 is about 11463.5091485984. The cubic root of 131412042 is about 508.4072338557.

Adding to 131412042 its reverse (240214131), we get a palindrome (371626173).

The spelling of 131412042 in words is "one hundred thirty-one million, four hundred twelve thousand, forty-two".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 169783 339566 509349 1018698 1528047 3056094 7300669 14601338 21902007 43804014 65706021 131412042