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390000429 = 327133115361
BaseRepresentation
bin10111001111101…
…110111100101101
31000011212002000100
4113033232330231
51244320003204
6102411021313
712443643330
oct2717567455
91004762010
10390000429
11190166105
12aa73a839
1362a4ccb0
1439b20617
152438aa39
hex173eef2d

390000429 has 48 divisors (see below), whose sum is σ = 715746304. Its totient is φ = 199065600.

The previous prime is 390000427. The next prime is 390000433. The reversal of 390000429 is 924000093.

It is not a de Polignac number, because 390000429 - 21 = 390000427 is a prime.

390000429 is a modest number, since divided by 429 gives 390 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390000427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17709 + ... + 33069.

Almost surely, 2390000429 is an apocalyptic number.

390000429 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

390000429 is a deficient number, since it is larger than the sum of its proper divisors (325745875).

390000429 is a wasteful number, since it uses less digits than its factorization.

390000429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15418 (or 15415 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 390000429 is about 19748.4285197582. The cubic root of 390000429 is about 730.6146252981.

The spelling of 390000429 in words is "three hundred ninety million, four hundred twenty-nine", and thus it is an aban number.

Divisors: 1 3 7 9 13 21 31 39 63 91 93 117 217 273 279 403 651 819 1209 1953 2821 3627 8463 15361 25389 46083 107527 138249 199693 322581 476191 599079 967743 1397851 1428573 1797237 3333337 4193553 4285719 6190483 10000011 12580659 18571449 30000033 43333381 55714347 130000143 390000429