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390484472 = 23723472971
BaseRepresentation
bin10111010001100…
…101000111111000
31000012202122222212
4113101211013320
51244431000342
6102425234252
712451030460
oct2721450770
91005678885
10390484472
11190466844
12aa932988
1362b8c401
1439c08ba0
1524434182
hex174651f8

390484472 has 32 divisors (see below), whose sum is σ = 837390720. Its totient is φ = 167222880.

The previous prime is 390484469. The next prime is 390484481. The reversal of 390484472 is 274484093.

It is a congruent 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, 129947 + ... + 132917.

It is an arithmetic number, because the mean of its divisors is an integer number (26168460).

Almost surely, 2390484472 is an apocalyptic number.

It is an amenable number.

390484472 is an abundant number, since it is smaller than the sum of its proper divisors (446906248).

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

390484472 is a wasteful number, since it uses less digits than its factorization.

390484472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5331 (or 5327 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 390484472 is about 19760.6799478156. The cubic root of 390484472 is about 730.9167640147.

The spelling of 390484472 in words is "three hundred ninety million, four hundred eighty-four thousand, four hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 2347 2971 4694 5942 9388 11884 16429 18776 20797 23768 32858 41594 65716 83188 131432 166376 6972937 13945874 27891748 48810559 55783496 97621118 195242236 390484472