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57749484 = 22313419029
BaseRepresentation
bin1101110001001…
…0111111101100
311000122222101210
43130102333230
5104240440414
65421434420
71300601562
oct334227754
9130588353
1057749484
112a664051
121740ba10
13bc6c7c0
147953a32
15510ae59
hex3712fec

57749484 has 48 divisors (see below), whose sum is σ = 148669920. Its totient is φ = 17333760.

The previous prime is 57749453. The next prime is 57749501. The reversal of 57749484 is 48494775.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1882 + ... + 10910.

It is an arithmetic number, because the mean of its divisors is an integer number (3097290).

Almost surely, 257749484 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 57749484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74334960).

57749484 is an abundant number, since it is smaller than the sum of its proper divisors (90920436).

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

57749484 is a wasteful number, since it uses less digits than its factorization.

57749484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9090 (or 9088 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 57749484 is about 7599.3081264020. The cubic root of 57749484 is about 386.5295513967.

The spelling of 57749484 in words is "fifty-seven million, seven hundred forty-nine thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 13 26 39 41 52 78 82 123 156 164 246 492 533 1066 1599 2132 3198 6396 9029 18058 27087 36116 54174 108348 117377 234754 352131 370189 469508 704262 740378 1110567 1408524 1480756 2221134 4442268 4812457 9624914 14437371 19249828 28874742 57749484