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390257350 = 25272938449
BaseRepresentation
bin10111010000101…
…101101011000110
31000012100010102221
4113100231223012
51244401213400
6102420322554
712446063350
oct2720555306
91005303387
10390257350
1119032113a
12aa84345a
1362b0cc12
1439b8a0d0
15243dbc1a
hex1742dac6

390257350 has 48 divisors (see below), whose sum is σ = 858204000. Its totient is φ = 129185280.

The previous prime is 390257341. The next prime is 390257377. The reversal of 390257350 is 53752093.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9075 + ... + 29374.

It is an arithmetic number, because the mean of its divisors is an integer number (17879250).

Almost surely, 2390257350 is an apocalyptic number.

390257350 is an abundant number, since it is smaller than the sum of its proper divisors (467946650).

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

390257350 is a wasteful number, since it uses less digits than its factorization.

390257350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38497 (or 38492 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 390257350 is about 19754.9322955053. The cubic root of 390257350 is about 730.7750260070.

The spelling of 390257350 in words is "three hundred ninety million, two hundred fifty-seven thousand, three hundred fifty".

Divisors: 1 2 5 7 10 14 25 29 35 50 58 70 145 175 203 290 350 406 725 1015 1450 2030 5075 10150 38449 76898 192245 269143 384490 538286 961225 1115021 1345715 1922450 2230042 2691430 5575105 6728575 7805147 11150210 13457150 15610294 27875525 39025735 55751050 78051470 195128675 390257350