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57940331 = 477197179
BaseRepresentation
bin1101110100000…
…1100101101011
311001000200012012
43131001211223
5104313042311
65425510135
71302325151
oct335014553
9131020165
1057940331
112a784479
12174a234b
13c008627
1479a33d1
15514778b
hex374196b

57940331 has 16 divisors (see below), whose sum is σ = 60963840. Its totient is φ = 55023360.

The previous prime is 57940303. The next prime is 57940349. The reversal of 57940331 is 13304975.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 57940331 - 210 = 57939307 is a prime.

It is a super-2 number, since 2×579403312 = 6714163912779122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57940031) 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, 323600 + ... + 323778.

It is an arithmetic number, because the mean of its divisors is an integer number (3810240).

Almost surely, 257940331 is an apocalyptic number.

57940331 is a deficient number, since it is larger than the sum of its proper divisors (3023509).

57940331 is a wasteful number, since it uses less digits than its factorization.

57940331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 57940331 is about 7611.8546360266. The cubic root of 57940331 is about 386.9548763677.

The spelling of 57940331 in words is "fifty-seven million, nine hundred forty thousand, three hundred thirty-one".

Divisors: 1 47 71 97 179 3337 4559 6887 8413 12709 17363 323689 597323 816061 1232773 57940331