Search a number
-
+
57017073 = 319005691
BaseRepresentation
bin1101100110000…
…0001011110001
310222021202201110
43121200023301
5104044021243
65354023533
71261431351
oct331401361
9128252643
1057017073
112a203853
1217117ba9
13ba74319
147802b61
155013e33
hex36602f1

57017073 has 4 divisors (see below), whose sum is σ = 76022768. Its totient is φ = 38011380.

The previous prime is 57017057. The next prime is 57017083. The reversal of 57017073 is 37071075.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 57017073 - 24 = 57017057 is a prime.

It is a super-2 number, since 2×570170732 = 6501893226974658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57017073.

It is not an unprimeable number, because it can be changed into a prime (57017083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9502843 + ... + 9502848.

It is an arithmetic number, because the mean of its divisors is an integer number (19005692).

Almost surely, 257017073 is an apocalyptic number.

It is an amenable number.

57017073 is a deficient number, since it is larger than the sum of its proper divisors (19005695).

57017073 is a wasteful number, since it uses less digits than its factorization.

57017073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19005694.

The product of its (nonzero) digits is 5145, while the sum is 30.

The square root of 57017073 is about 7550.9650376624. The cubic root of 57017073 is about 384.8885335375. Note that the first 3 decimals are identical.

The spelling of 57017073 in words is "fifty-seven million, seventeen thousand, seventy-three".

Divisors: 1 3 19005691 57017073