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257107316 = 22193382991
BaseRepresentation
bin11110101001100…
…10010101110100
3122220210101221012
433110302111310
51011304413231
641302411352
76241243004
oct1724622564
9586711835
10257107316
11122148594
1272130b58
134136070b
142620a004
1517889e2b
hexf532574

257107316 has 12 divisors (see below), whose sum is σ = 473618880. Its totient is φ = 121787640.

The previous prime is 257107313. The next prime is 257107321. The reversal of 257107316 is 613701752.

It is a super-2 number, since 2×2571073162 = 132208343881447712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257107313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1691420 + ... + 1691571.

It is an arithmetic number, because the mean of its divisors is an integer number (39468240).

Almost surely, 2257107316 is an apocalyptic number.

It is an amenable number.

257107316 is a deficient number, since it is larger than the sum of its proper divisors (216511564).

257107316 is a wasteful number, since it uses less digits than its factorization.

257107316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383014 (or 3383012 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 257107316 is about 16034.5662866197. The cubic root of 257107316 is about 635.8746011489.

The spelling of 257107316 in words is "two hundred fifty-seven million, one hundred seven thousand, three hundred sixteen".

Divisors: 1 2 4 19 38 76 3382991 6765982 13531964 64276829 128553658 257107316