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57113448 = 2337734657
BaseRepresentation
bin1101100111011…
…1101101101000
310222110122220220
43121313231220
5104110112243
65400050040
71262312340
oct331675550
9128418826
1057113448
112a26a1a7
1217163920
13baa9152
147829d20
155032783
hex3677b68

57113448 has 64 divisors (see below), whose sum is σ = 165452160. Its totient is φ = 16091136.

The previous prime is 57113443. The next prime is 57113453. The reversal of 57113448 is 84431175.

It is an interprime number because it is at equal distance from previous prime (57113443) and next prime (57113453).

It is not an unprimeable number, because it can be changed into a prime (57113443) 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, 9936 + ... + 14592.

It is an arithmetic number, because the mean of its divisors is an integer number (2585190).

Almost surely, 257113448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57113448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82726080).

57113448 is an abundant number, since it is smaller than the sum of its proper divisors (108338712).

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

57113448 is a wasteful number, since it uses less digits than its factorization.

57113448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4746 (or 4742 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 57113448 is about 7557.3439778801. The cubic root of 57113448 is about 385.1052683416.

The spelling of 57113448 in words is "fifty-seven million, one hundred thirteen thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 73 84 146 168 219 292 438 511 584 876 1022 1533 1752 2044 3066 4088 4657 6132 9314 12264 13971 18628 27942 32599 37256 55884 65198 97797 111768 130396 195594 260792 339961 391188 679922 782376 1019883 1359844 2039766 2379727 2719688 4079532 4759454 7139181 8159064 9518908 14278362 19037816 28556724 57113448