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390132008 = 2376966643
BaseRepresentation
bin10111010000001…
…111000100101000
31000012002202111122
4113100033010220
51244333211013
6102413514412
712445032050
oct2720170450
91005082448
10390132008
11190245a52
12aa7a2a08
1362a97b56
1439b56560
15243b4a08
hex1740f128

390132008 has 16 divisors (see below), whose sum is σ = 835997280. Its totient is φ = 167199408.

The previous prime is 390131999. The next prime is 390132079. The reversal of 390132008 is 800231093.

It is a super-2 number, since 2×3901320082 = 304405967332224128, which contains 22 as substring.

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, 3483266 + ... + 3483377.

It is an arithmetic number, because the mean of its divisors is an integer number (52249830).

Almost surely, 2390132008 is an apocalyptic number.

It is an amenable number.

390132008 is an abundant number, since it is smaller than the sum of its proper divisors (445865272).

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

390132008 is a wasteful number, since it uses less digits than its factorization.

390132008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6966656 (or 6966652 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 390132008 is about 19751.7596178163. The cubic root of 390132008 is about 730.6967813894.

The spelling of 390132008 in words is "three hundred ninety million, one hundred thirty-two thousand, eight".

Divisors: 1 2 4 7 8 14 28 56 6966643 13933286 27866572 48766501 55733144 97533002 195066004 390132008