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57982194 = 23229277401
BaseRepresentation
bin1101110100101…
…1110011110010
311001002210121200
43131023303302
5104320412234
65430432030
71302561204
oct335136362
9131083550
1057982194
112a802976
1217502616
13c0216ba
1479b4774
155154d99
hex374bcf2

57982194 has 48 divisors (see below), whose sum is σ = 130754520. Its totient is φ = 18547200.

The previous prime is 57982193. The next prime is 57982201. The reversal of 57982194 is 49128975.

It can be written as a sum of positive squares in 4 ways, for example, as 55308969 + 2673225 = 7437^2 + 1635^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57982193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144394 + ... + 144794.

Almost surely, 257982194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57982194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65377260).

57982194 is an abundant number, since it is smaller than the sum of its proper divisors (72772326).

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

57982194 is a wasteful number, since it uses less digits than its factorization.

57982194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 712 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 57982194 is about 7614.6039949560. The cubic root of 57982194 is about 387.0480480375.

The spelling of 57982194 in words is "fifty-seven million, nine hundred eighty-two thousand, one hundred ninety-four".

Divisors: 1 2 3 6 9 18 29 58 87 174 261 277 401 522 554 802 831 1203 1662 2406 2493 3609 4986 7218 8033 11629 16066 23258 24099 34887 48198 69774 72297 104661 111077 144594 209322 222154 333231 666462 999693 1999386 3221233 6442466 9663699 19327398 28991097 57982194