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131112542 = 2115959661
BaseRepresentation
bin1111101000010…
…01111001011110
3100010201012121002
413310021321132
5232031100132
621002110302
73151303211
oct764117136
9303635532
10131112542
1168011880
1237aab392
1321217cb2
14135ad778
15b79d262
hex7d09e5e

131112542 has 8 divisors (see below), whose sum is σ = 214547832. Its totient is φ = 59596600.

The previous prime is 131112533. The next prime is 131112577. The reversal of 131112542 is 245211131.

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

It is a congruent number.

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, 2979809 + ... + 2979852.

It is an arithmetic number, because the mean of its divisors is an integer number (26818479).

Almost surely, 2131112542 is an apocalyptic number.

131112542 is a deficient number, since it is larger than the sum of its proper divisors (83435290).

131112542 is a wasteful number, since it uses less digits than its factorization.

131112542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5959674.

The product of its digits is 240, while the sum is 20.

The square root of 131112542 is about 11450.4385068870. The cubic root of 131112542 is about 508.0207046142.

Adding to 131112542 its reverse (245211131), we get a palindrome (376323673).

The spelling of 131112542 in words is "one hundred thirty-one million, one hundred twelve thousand, five hundred forty-two".

Divisors: 1 2 11 22 5959661 11919322 65556271 131112542