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390125490 = 23573917597
BaseRepresentation
bin10111010000001…
…101011110110010
31000012002102120020
4113100031132302
51244333003430
6102413424310
712445004046
oct2720153662
91005072506
10390125490
11190241067
12aa79b096
1362a94bb1
1439b54026
15243b2b10
hex1740d7b2

390125490 has 32 divisors (see below), whose sum is σ = 937621440. Its totient is φ = 103886784.

The previous prime is 390125479. The next prime is 390125501. The reversal of 390125490 is 94521093.

It is an interprime number because it is at equal distance from previous prime (390125479) and next prime (390125501).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13372 + ... + 30968.

It is an arithmetic number, because the mean of its divisors is an integer number (29300670).

Almost surely, 2390125490 is an apocalyptic number.

390125490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

390125490 is an abundant number, since it is smaller than the sum of its proper divisors (547495950).

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

390125490 is a wasteful number, since it uses less digits than its factorization.

390125490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18346.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 390125490 is about 19751.5946191694. The cubic root of 390125490 is about 730.6927120761.

The spelling of 390125490 in words is "three hundred ninety million, one hundred twenty-five thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 739 1478 2217 3695 4434 7390 11085 17597 22170 35194 52791 87985 105582 175970 263955 527910 13004183 26008366 39012549 65020915 78025098 130041830 195062745 390125490