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390342512 = 2478833947
BaseRepresentation
bin10111010001000…
…010011101110000
31000012111110021002
4113101002131300
51244411430022
6102422221132
712446566550
oct2721023560
91005443232
10390342512
1119037a11a
12aa8847a8
1362b3c901
1439bad160
1524407092
hex17442770

390342512 has 40 divisors (see below), whose sum is σ = 865527936. Its totient is φ = 167057856.

The previous prime is 390342503. The next prime is 390342541. The reversal of 390342512 is 215243093.

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 7 ways as a sum of consecutive naturals, for example, 96923 + ... + 100869.

Almost surely, 2390342512 is an apocalyptic number.

It is an amenable number.

390342512 is an abundant number, since it is smaller than the sum of its proper divisors (475185424).

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

390342512 is a wasteful number, since it uses less digits than its factorization.

390342512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4845 (or 4839 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 390342512 is about 19757.0876396295. The cubic root of 390342512 is about 730.8281787419.

The spelling of 390342512 in words is "three hundred ninety million, three hundred forty-two thousand, five hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 56 112 883 1766 3532 3947 6181 7064 7894 12362 14128 15788 24724 27629 31576 49448 55258 63152 98896 110516 221032 442064 3485201 6970402 13940804 24396407 27881608 48792814 55763216 97585628 195171256 390342512