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390464092 = 221721372687
BaseRepresentation
bin10111010001100…
…000001001011100
31000012201122001001
4113101200021130
51244424322332
6102425000044
712450614164
oct2721401134
91005648031
10390464092
111904524a7
12aa923024
1362b83055
1439c015a4
152442d0e7
hex1746025c

390464092 has 24 divisors (see below), whose sum is σ = 724114944. Its totient is φ = 183593472.

The previous prime is 390464059. The next prime is 390464101. The reversal of 390464092 is 290464093.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143973 + ... + 146659.

It is an arithmetic number, because the mean of its divisors is an integer number (30171456).

Almost surely, 2390464092 is an apocalyptic number.

It is an amenable number.

390464092 is a deficient number, since it is larger than the sum of its proper divisors (333650852).

390464092 is a wasteful number, since it uses less digits than its factorization.

390464092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845 (or 4843 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 390464092 is about 19760.1642705722. The cubic root of 390464092 is about 730.9040478942.

Subtracting from 390464092 its reverse (290464093), we obtain a palindrome (99999999).

The spelling of 390464092 in words is "three hundred ninety million, four hundred sixty-four thousand, ninety-two".

Divisors: 1 2 4 17 34 68 2137 2687 4274 5374 8548 10748 36329 45679 72658 91358 145316 182716 5742119 11484238 22968476 97616023 195232046 390464092