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390514143 = 3799716987
BaseRepresentation
bin10111010001101…
…100010111011111
31000012211011200210
4113101230113133
51244432423033
6102430023503
712451213125
oct2721542737
91005734623
10390514143
11190487068
12aa947b93
1362b9ca76
1439c15915
152443cd63
hex1746c5df

390514143 has 16 divisors (see below), whose sum is σ = 532743680. Its totient is φ = 254382336.

The previous prime is 390514141. The next prime is 390514153. The reversal of 390514143 is 341415093.

It is not a de Polignac number, because 390514143 - 21 = 390514141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 390514143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390514141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14496 + ... + 31482.

It is an arithmetic number, because the mean of its divisors is an integer number (33296480).

Almost surely, 2390514143 is an apocalyptic number.

390514143 is a deficient number, since it is larger than the sum of its proper divisors (142229537).

390514143 is a wasteful number, since it uses less digits than its factorization.

390514143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17166.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 390514143 is about 19761.4306921336. The cubic root of 390514143 is about 730.9352764726.

The spelling of 390514143 in words is "three hundred ninety million, five hundred fourteen thousand, one hundred forty-three".

Divisors: 1 3 79 97 237 291 7663 16987 22989 50961 1341973 1647739 4025919 4943217 130171381 390514143