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57990889 = 1123229213
BaseRepresentation
bin1101110100110…
…1111011101001
311001010020112201
43131031323221
5104321202024
65430540201
71302625435
oct335157351
9131106481
1057990889
112a809460
1217507661
13c025648
1479b79c5
155157744
hex374dee9

57990889 has 8 divisors (see below), whose sum is σ = 66013632. Its totient is φ = 50426640.

The previous prime is 57990871. The next prime is 57990899. The reversal of 57990889 is 98809975.

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

It is not a de Polignac number, because 57990889 - 27 = 57990761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57990839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114354 + ... + 114859.

It is an arithmetic number, because the mean of its divisors is an integer number (8251704).

Almost surely, 257990889 is an apocalyptic number.

It is an amenable number.

57990889 is a deficient number, since it is larger than the sum of its proper divisors (8022743).

57990889 is a wasteful number, since it uses less digits than its factorization.

57990889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229247.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The square root of 57990889 is about 7615.1749159162. The cubic root of 57990889 is about 387.0673942904.

The spelling of 57990889 in words is "fifty-seven million, nine hundred ninety thousand, eight hundred eighty-nine".

Divisors: 1 11 23 253 229213 2521343 5271899 57990889