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390268086 = 231343116359
BaseRepresentation
bin10111010000110…
…000010010110110
31000012100200011120
4113100300102312
51244402034321
6102420444410
712446136555
oct2720602266
91005320146
10390268086
1119032920a
12aa849706
1362b14a80
1439b8dd9c
15243deec6
hex174304b6

390268086 has 32 divisors (see below), whose sum is σ = 860133120. Its totient is φ = 117288864.

The previous prime is 390268027. The next prime is 390268091. The reversal of 390268086 is 680862093.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54826 + ... + 61533.

It is an arithmetic number, because the mean of its divisors is an integer number (26879160).

Almost surely, 2390268086 is an apocalyptic number.

390268086 is an abundant number, since it is smaller than the sum of its proper divisors (469865034).

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

390268086 is a wasteful number, since it uses less digits than its factorization.

390268086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116420.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 390268086 is about 19755.2040232441. The cubic root of 390268086 is about 730.7817271652.

The spelling of 390268086 in words is "three hundred ninety million, two hundred sixty-eight thousand, eighty-six".

Divisors: 1 2 3 6 13 26 39 43 78 86 129 258 559 1118 1677 3354 116359 232718 349077 698154 1512667 3025334 4538001 5003437 9076002 10006874 15010311 30020622 65044681 130089362 195134043 390268086