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57400376 = 2311719187
BaseRepresentation
bin1101101011110…
…1110000111000
311000000020111212
43122331300320
5104143303001
65410142252
71264616015
oct332756070
9130006455
1057400376
112a445830
1217281988
13bb79927
1478a270c
15508c7bb
hex36bdc38

57400376 has 32 divisors (see below), whose sum is σ = 119076480. Its totient is φ = 25720800.

The previous prime is 57400363. The next prime is 57400457. The reversal of 57400376 is 67300475.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1655 + ... + 10841.

It is an arithmetic number, because the mean of its divisors is an integer number (3721140).

Almost surely, 257400376 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 57400376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59538240).

57400376 is an abundant number, since it is smaller than the sum of its proper divisors (61676104).

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

57400376 is a wasteful number, since it uses less digits than its factorization.

57400376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9275 (or 9271 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 57400376 is about 7576.3035842025. The cubic root of 57400376 is about 385.7490919534.

Subtracting 57400376 from its reverse (67300475), we obtain a palindrome (9900099).

The spelling of 57400376 in words is "fifty-seven million, four hundred thousand, three hundred seventy-six".

Divisors: 1 2 4 8 11 22 44 71 88 142 284 568 781 1562 3124 6248 9187 18374 36748 73496 101057 202114 404228 652277 808456 1304554 2609108 5218216 7175047 14350094 28700188 57400376