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1313972 = 221129863
BaseRepresentation
bin101000000110010110100
32110202102122
411000302310
5314021342
644055112
714111552
oct5006264
92422378
101313972
11818230
12534498
133700ca
14262bd2
151ae4d2
hex140cb4

1313972 has 12 divisors (see below), whose sum is σ = 2508576. Its totient is φ = 597240.

The previous prime is 1313959. The next prime is 1313987. The reversal of 1313972 is 2793131.

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, 14888 + ... + 14975.

It is an arithmetic number, because the mean of its divisors is an integer number (209048).

21313972 is an apocalyptic number.

It is an amenable number.

1313972 is a deficient number, since it is larger than the sum of its proper divisors (1194604).

1313972 is a wasteful number, since it uses less digits than its factorization.

1313972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29878 (or 29876 counting only the distinct ones).

The product of its digits is 1134, while the sum is 26.

The square root of 1313972 is about 1146.2861771826. The cubic root of 1313972 is about 109.5288943299.

The spelling of 1313972 in words is "one million, three hundred thirteen thousand, nine hundred seventy-two".

Divisors: 1 2 4 11 22 44 29863 59726 119452 328493 656986 1313972