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257103316 = 22251256079
BaseRepresentation
bin11110101001100…
…01010111010100
3122220210012110001
433110301113110
51011304301231
641302341044
76241225231
oct1724612724
9586705401
10257103316
11122145588
127212a784
134135b952
1426208788
1517888b61
hexf5315d4

257103316 has 12 divisors (see below), whose sum is σ = 451725120. Its totient is φ = 128039000.

The previous prime is 257103313. The next prime is 257103317. The reversal of 257103316 is 613301752.

257103316 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2571033162 = 132204230196391712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257103313) 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, 127036 + ... + 129043.

It is an arithmetic number, because the mean of its divisors is an integer number (37643760).

Almost surely, 2257103316 is an apocalyptic number.

It is an amenable number.

257103316 is a deficient number, since it is larger than the sum of its proper divisors (194621804).

257103316 is a wasteful number, since it uses less digits than its factorization.

257103316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256334 (or 256332 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 257103316 is about 16034.4415556015. The cubic root of 257103316 is about 635.8713035484.

The spelling of 257103316 in words is "two hundred fifty-seven million, one hundred three thousand, three hundred sixteen".

Divisors: 1 2 4 251 502 1004 256079 512158 1024316 64275829 128551658 257103316