Search a number
-
+
57115699 = 173359747
BaseRepresentation
bin1101100111100…
…0010000110011
310222110210000021
43121320100303
5104110200244
65400104311
71262322034
oct331702063
9128423007
1057115699
112a270963
1217165097
13baaa194
14782aa8b
155033284
hex3678433

57115699 has 4 divisors (see below), whose sum is σ = 60475464. Its totient is φ = 53755936.

The previous prime is 57115649. The next prime is 57115741. The reversal of 57115699 is 99651175.

57115699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57115699 - 27 = 57115571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57115649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1679857 + ... + 1679890.

It is an arithmetic number, because the mean of its divisors is an integer number (15118866).

Almost surely, 257115699 is an apocalyptic number.

57115699 is a deficient number, since it is larger than the sum of its proper divisors (3359765).

57115699 is a wasteful number, since it uses less digits than its factorization.

57115699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359764.

The product of its digits is 85050, while the sum is 43.

The square root of 57115699 is about 7557.4929043963. The cubic root of 57115699 is about 385.1103276320.

The spelling of 57115699 in words is "fifty-seven million, one hundred fifteen thousand, six hundred ninety-nine".

Divisors: 1 17 3359747 57115699