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972140 = 225133739
BaseRepresentation
bin11101101010101101100
31211101112012
43231111230
5222102030
632500352
711156141
oct3552554
91741465
10972140
11604424
123aa6b8
13280640
141b43c8
15143095
hexed56c

972140 has 24 divisors (see below), whose sum is σ = 2199120. Its totient is φ = 358848.

The previous prime is 972137. The next prime is 972161. The reversal of 972140 is 41279.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1610 + ... + 2129.

It is an arithmetic number, because the mean of its divisors is an integer number (91630).

2972140 is an apocalyptic number.

It is an amenable number.

972140 is an abundant number, since it is smaller than the sum of its proper divisors (1226980).

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

972140 is a wasteful number, since it uses less digits than its factorization.

972140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761 (or 3759 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 972140 is about 985.9716020251. The cubic root of 972140 is about 99.0625731008.

The spelling of 972140 in words is "nine hundred seventy-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 3739 7478 14956 18695 37390 48607 74780 97214 194428 243035 486070 972140