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57098380 = 2252854919
BaseRepresentation
bin1101100111010…
…0000010001100
310222102220020211
43121310002030
5104104122010
65355452204
71262220403
oct331640214
9128386224
1057098380
112a259949
1217157064
13baa2331
14782463a
15502d08a
hex367408c

57098380 has 12 divisors (see below), whose sum is σ = 119906640. Its totient is φ = 22839344.

The previous prime is 57098369. The next prime is 57098381. The reversal of 57098380 is 8389075.

It is not an unprimeable number, because it can be changed into a prime (57098381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1427440 + ... + 1427479.

It is an arithmetic number, because the mean of its divisors is an integer number (9992220).

Almost surely, 257098380 is an apocalyptic number.

It is an amenable number.

57098380 is an abundant number, since it is smaller than the sum of its proper divisors (62808260).

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

57098380 is a wasteful number, since it uses less digits than its factorization.

57098380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854928 (or 2854926 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 57098380 is about 7556.3470010316. The cubic root of 57098380 is about 385.0713984635.

The spelling of 57098380 in words is "fifty-seven million, ninety-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 2854919 5709838 11419676 14274595 28549190 57098380