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57497648 = 24131914549
BaseRepresentation
bin1101101101010…
…1100000110000
311000012011221112
43123111200300
5104204411043
65412212452
71265502425
oct333254060
9130164845
1057497648
112a50191a
121730a128
13bbb1ca0
1478c9d4c
1550ab518
hex36d5830

57497648 has 40 divisors (see below), whose sum is σ = 126294000. Its totient is φ = 25138944.

The previous prime is 57497641. The next prime is 57497659. The reversal of 57497648 is 84679475.

It is a junction number, because it is equal to n+sod(n) for n = 57497596 and 57497605.

It is not an unprimeable number, because it can be changed into a prime (57497641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3323 + ... + 11226.

It is an arithmetic number, because the mean of its divisors is an integer number (3157350).

Almost surely, 257497648 is an apocalyptic number.

It is an amenable number.

57497648 is an abundant number, since it is smaller than the sum of its proper divisors (68796352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57497648 is a wasteful number, since it uses less digits than its factorization.

57497648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14589 (or 14583 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The square root of 57497648 is about 7582.7203561782. The cubic root of 57497648 is about 385.9668687502.

The spelling of 57497648 in words is "fifty-seven million, four hundred ninety-seven thousand, six hundred forty-eight".

Divisors: 1 2 4 8 13 16 19 26 38 52 76 104 152 208 247 304 494 988 1976 3952 14549 29098 58196 116392 189137 232784 276431 378274 552862 756548 1105724 1513096 2211448 3026192 3593603 4422896 7187206 14374412 28748824 57497648