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257046038 = 21117311503
BaseRepresentation
bin11110101001000…
…11011000010110
3122220200021212122
433110203120112
51011300433123
641301215542
76240566234
oct1724433026
9586607778
10257046038
11122106547
12721015b2
134133b862
14261d1954
1517876bc8
hexf523616

257046038 has 8 divisors (see below), whose sum is σ = 385637088. Its totient is φ = 128500344.

The previous prime is 257046029. The next prime is 257046043. The reversal of 257046038 is 830640752.

It is a happy number.

257046038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 257045989 and 257046007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16595 + ... + 28097.

It is an arithmetic number, because the mean of its divisors is an integer number (48204636).

Almost surely, 2257046038 is an apocalyptic number.

257046038 is a deficient number, since it is larger than the sum of its proper divisors (128591050).

257046038 is a wasteful number, since it uses less digits than its factorization.

257046038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22678.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 257046038 is about 16032.6553633514. The cubic root of 257046038 is about 635.8240798070.

The spelling of 257046038 in words is "two hundred fifty-seven million, forty-six thousand, thirty-eight".

Divisors: 1 2 11173 11503 22346 23006 128523019 257046038