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57431396 = 22111936763
BaseRepresentation
bin1101101100010…
…1010101100100
311000001211001202
43123011111210
5104200301041
65410542032
71265105321
oct333052544
9130054052
1057431396
112a467070
1217297918
13bb8aa99
1478adb48
155096a9b
hex36c5564

57431396 has 24 divisors (see below), whose sum is σ = 110226144. Its totient is φ = 25966080.

The previous prime is 57431377. The next prime is 57431399. The reversal of 57431396 is 69313475.

57431396 = T341 + T342 + ... + T726.

It is a happy number.

57431396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57431399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5111 + ... + 11873.

It is an arithmetic number, because the mean of its divisors is an integer number (4592756).

Almost surely, 257431396 is an apocalyptic number.

It is an amenable number.

57431396 is a deficient number, since it is larger than the sum of its proper divisors (52794748).

57431396 is a wasteful number, since it uses less digits than its factorization.

57431396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6971 (or 6969 counting only the distinct ones).

The product of its digits is 68040, while the sum is 38.

The square root of 57431396 is about 7578.3504801507. The cubic root of 57431396 is about 385.8185675840.

The spelling of 57431396 in words is "fifty-seven million, four hundred thirty-one thousand, three hundred ninety-six".

Divisors: 1 2 4 11 22 44 193 386 772 2123 4246 6763 8492 13526 27052 74393 148786 297572 1305259 2610518 5221036 14357849 28715698 57431396