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252939379 = 71117732647
BaseRepresentation
bin11110001001110…
…00110001110011
3122121221122121011
433010320301303
51004223030004
641033211351
76160643410
oct1704706163
9577848534
10252939379
1111a861110
1270860b57
1340531594
1425843107
1517315004
hexf138c73

252939379 has 32 divisors (see below), whose sum is σ = 338605056. Its totient is φ = 182891520.

The previous prime is 252939359. The next prime is 252939391. The reversal of 252939379 is 973939252.

It is not a de Polignac number, because 252939379 - 27 = 252939251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252939319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94234 + ... + 96880.

It is an arithmetic number, because the mean of its divisors is an integer number (10581408).

Almost surely, 2252939379 is an apocalyptic number.

252939379 is a deficient number, since it is larger than the sum of its proper divisors (85665677).

252939379 is a wasteful number, since it uses less digits than its factorization.

252939379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755.

The product of its digits is 918540, while the sum is 49.

The square root of 252939379 is about 15904.0680016152. The cubic root of 252939379 is about 632.4198351744.

The spelling of 252939379 in words is "two hundred fifty-two million, nine hundred thirty-nine thousand, three hundred seventy-nine".

Divisors: 1 7 11 17 73 77 119 187 511 803 1241 1309 2647 5621 8687 13651 18529 29117 44999 95557 193231 203819 314993 494989 1352617 2125541 3284927 3464923 14878787 22994489 36134197 252939379