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57897982 = 238974419
BaseRepresentation
bin1101110011011…
…1001111111110
311000221112002201
43130313033332
5104310213412
65424542114
71302060532
oct334671776
9130845081
1057897982
112a75567a
121748193a
13bcc227c
147991bc2
155139e57
hex37373fe

57897982 has 8 divisors (see below), whose sum is σ = 87071400. Its totient is φ = 28874184.

The previous prime is 57897977. The next prime is 57898003. The reversal of 57897982 is 28979875.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36432 + ... + 37987.

It is an arithmetic number, because the mean of its divisors is an integer number (10883925).

Almost surely, 257897982 is an apocalyptic number.

57897982 is a deficient number, since it is larger than the sum of its proper divisors (29173418).

57897982 is a wasteful number, since it uses less digits than its factorization.

57897982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74810.

The product of its digits is 2540160, while the sum is 55.

The square root of 57897982 is about 7609.0723481907. The cubic root of 57897982 is about 386.8605773656.

It can be divided in two parts, 5 and 7897982, that added together give a palindrome (7897987).

The spelling of 57897982 in words is "fifty-seven million, eight hundred ninety-seven thousand, nine hundred eighty-two".

Divisors: 1 2 389 778 74419 148838 28948991 57897982