Search a number
-
+
57492717802 = 21321611023257
BaseRepresentation
bin110101100010110101…
…010100000011101010
312111101202200200011121
4311202311110003222
51420221113432202
642224540245454
74103503016032
oct654265240352
9174352620147
1057492717802
112242315a913
12b18624088a
13556317b260
142ad58a88c2
151767589537
hexd62d540ea

57492717802 has 16 divisors (see below), whose sum is σ = 92915919432. Its totient is φ = 26522795520.

The previous prime is 57492717797. The next prime is 57492717803. The reversal of 57492717802 is 20871729475.

It can be written as a sum of positive squares in 4 ways, for example, as 34022171401 + 23470546401 = 184451^2 + 153201^2 .

It is a super-2 number, since 2×574927178022 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57492717802.

It is not an unprimeable number, because it can be changed into a prime (57492717803) 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, 455443 + ... + 567814.

Almost surely, 257492717802 is an apocalyptic number.

57492717802 is a deficient number, since it is larger than the sum of its proper divisors (35423201630).

57492717802 is a wasteful number, since it uses less digits than its factorization.

57492717802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025433.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 57492717802 in words is "fifty-seven billion, four hundred ninety-two million, seven hundred seventeen thousand, eight hundred two".

Divisors: 1 2 13 26 2161 4322 28093 56186 1023257 2046514 13302341 26604682 2211258377 4422516754 28746358901 57492717802