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131434412 = 22171932859
BaseRepresentation
bin1111101010110…
…00011110101100
3100011022120010012
413311120132230
5232121400122
621013032352
73154113464
oct765303654
9304276105
10131434412
116821168a
12380256b8
13212cb655
1413654ba4
15b8137e2
hex7d587ac

131434412 has 12 divisors (see below), whose sum is σ = 243540360. Its totient is φ = 61851456.

The previous prime is 131434379. The next prime is 131434421. The reversal of 131434412 is 214434131.

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, 966362 + ... + 966497.

It is an arithmetic number, because the mean of its divisors is an integer number (20295030).

Almost surely, 2131434412 is an apocalyptic number.

It is an amenable number.

131434412 is a deficient number, since it is larger than the sum of its proper divisors (112105948).

131434412 is a wasteful number, since it uses less digits than its factorization.

131434412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932880 (or 1932878 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 131434412 is about 11464.4848118003. The cubic root of 131434412 is about 508.4360805894.

Adding to 131434412 its reverse (214434131), we get a palindrome (345868543).

The spelling of 131434412 in words is "one hundred thirty-one million, four hundred thirty-four thousand, four hundred twelve".

Divisors: 1 2 4 17 34 68 1932859 3865718 7731436 32858603 65717206 131434412