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390430668830 = 25192054898257
BaseRepresentation
bin1011010111001110111…
…10110011100000011110
31101022202210011222102212
411223213132303200132
522344100222400310
6455210020120422
740131143633216
oct5534736634036
91338683158385
10390430668830
11140642a30244
1263802536112
132aa81c3c9c7
1414c7b309246
15a25175b205
hex5ae77b381e

390430668830 has 16 divisors (see below), whose sum is σ = 739763372880. Its totient is φ = 147952674432.

The previous prime is 390430668779. The next prime is 390430668857. The reversal of 390430668830 is 38866034093.

It is a super-2 number, since 2×3904306688302 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1027448939 + ... + 1027449318.

It is an arithmetic number, because the mean of its divisors is an integer number (46235210805).

Almost surely, 2390430668830 is an apocalyptic number.

390430668830 is a deficient number, since it is larger than the sum of its proper divisors (349332704050).

390430668830 is a wasteful number, since it uses less digits than its factorization.

390430668830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054898283.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 390430668830 in words is "three hundred ninety billion, four hundred thirty million, six hundred sixty-eight thousand, eight hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 2054898257 4109796514 10274491285 20548982570 39043066883 78086133766 195215334415 390430668830