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57998306 = 2139208627
BaseRepresentation
bin1101110100111…
…1101111100010
311001010121201102
43131033233202
5104321421211
65431034402
71302656162
oct335175742
9131117642
1057998306
112a813a93
121750ba02
13c028b32
1479ba5a2
155159a3b
hex374fbe2

57998306 has 8 divisors (see below), whose sum is σ = 87623760. Its totient is φ = 28790388.

The previous prime is 57998299. The next prime is 57998323. The reversal of 57998306 is 60389975.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 104036 + ... + 104591.

It is an arithmetic number, because the mean of its divisors is an integer number (10952970).

Almost surely, 257998306 is an apocalyptic number.

57998306 is a deficient number, since it is larger than the sum of its proper divisors (29625454).

57998306 is a wasteful number, since it uses less digits than its factorization.

57998306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208768.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 57998306 is about 7615.6618885032. The cubic root of 57998306 is about 387.0838954830.

The spelling of 57998306 in words is "fifty-seven million, nine hundred ninety-eight thousand, three hundred six".

Divisors: 1 2 139 278 208627 417254 28999153 57998306