Search a number
-
+
257302020674 = 21072816316781
BaseRepresentation
bin1110111110100001100…
…1010100001001000010
3220121010211010221101102
43233220121110021002
513203423304130144
6314111455134402
724406120042526
oct3575031241102
9817124127342
10257302020674
119a137312486
1241a49b14402
131b356b1c59a
14c64c509d86
156a5dde0b4e
hex3be8654242

257302020674 has 32 divisors (see below), whose sum is σ = 391623714432. Its totient is φ = 126775152000.

The previous prime is 257302020629. The next prime is 257302020691. The reversal of 257302020674 is 476020203752.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37941164 + ... + 37947944.

It is an arithmetic number, because the mean of its divisors is an integer number (12238241076).

Almost surely, 2257302020674 is an apocalyptic number.

257302020674 is a deficient number, since it is larger than the sum of its proper divisors (134321693758).

257302020674 is a wasteful number, since it uses less digits than its factorization.

257302020674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7802.

The product of its (nonzero) digits is 141120, while the sum is 38.

The spelling of 257302020674 in words is "two hundred fifty-seven billion, three hundred two million, twenty thousand, six hundred seventy-four".

Divisors: 1 2 107 214 281 562 631 1262 6781 13562 30067 60134 67517 135034 177311 354622 725567 1451134 1905461 3810922 4278811 8557622 18972277 37944554 203884327 407768654 457832777 915665554 1202345891 2404691782 128651010337 257302020674