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257096671 = 13316071051
BaseRepresentation
bin11110101001011…
…11101111011111
3122220202212022221
433110233233133
51011304043141
641302250211
76241166656
oct1724575737
9586685287
10257096671
11122140597
1272126967
1341358910
142620619d
1517886bd1
hexf52fbdf

257096671 has 16 divisors (see below), whose sum is σ = 286547968. Its totient is φ = 229068000.

The previous prime is 257096663. The next prime is 257096681. The reversal of 257096671 is 176690752.

It is a cyclic number.

It is not a de Polignac number, because 257096671 - 23 = 257096663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257096681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244096 + ... + 245146.

It is an arithmetic number, because the mean of its divisors is an integer number (17909248).

Almost surely, 2257096671 is an apocalyptic number.

257096671 is a deficient number, since it is larger than the sum of its proper divisors (29451297).

257096671 is a wasteful number, since it uses less digits than its factorization.

257096671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 257096671 is about 16034.2343440527. The cubic root of 257096671 is about 635.8658253341.

The spelling of 257096671 in words is "two hundred fifty-seven million, ninety-six thousand, six hundred seventy-one".

Divisors: 1 13 31 403 607 1051 7891 13663 18817 32581 244621 423553 637957 8293441 19776667 257096671