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404032972 = 227112912781
BaseRepresentation
bin11000000101010…
…000110111001100
31001011021000001011
4120011100313030
51311413023342
6104031455004
713004136460
oct3005206714
91034230034
10404032972
1119807aa52
12b3387464
1365924185
143b9344a0
152570d717
hex18150dcc

404032972 has 24 divisors (see below), whose sum is σ = 808844960. Its totient is φ = 172990080.

The previous prime is 404032957. The next prime is 404032991. The reversal of 404032972 is 279230404.

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, 25222 + ... + 38002.

Almost surely, 2404032972 is an apocalyptic number.

It is an amenable number.

404032972 is an abundant number, since it is smaller than the sum of its proper divisors (404811988).

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

404032972 is a wasteful number, since it uses less digits than its factorization.

404032972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13921 (or 13919 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 404032972 is about 20100.5714346632. The cubic root of 404032972 is about 739.2742897537.

The spelling of 404032972 in words is "four hundred four million, thirty-two thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 1129 2258 4516 7903 12781 15806 25562 31612 51124 89467 178934 357868 14429749 28859498 57718996 101008243 202016486 404032972