Search a number
-
+
57042829 = 238329881
BaseRepresentation
bin1101100110011…
…0011110001101
310222100002001101
43121212132031
5104100332304
65354343101
71261566424
oct331463615
9128302041
1057042829
112a221138
121712aa91
13ba82c6c
14780c2bb
15501b8a4
hex366678d

57042829 has 8 divisors (see below), whose sum is σ = 60242112. Its totient is φ = 53903520.

The previous prime is 57042823. The next prime is 57042889. The reversal of 57042829 is 92824075.

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

It is not a de Polignac number, because 57042829 - 225 = 23488397 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57042823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13032 + ... + 16849.

It is an arithmetic number, because the mean of its divisors is an integer number (7530264).

Almost surely, 257042829 is an apocalyptic number.

It is an amenable number.

57042829 is a deficient number, since it is larger than the sum of its proper divisors (3199283).

57042829 is a wasteful number, since it uses less digits than its factorization.

57042829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29987.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 57042829 is about 7552.6703224754. The cubic root of 57042829 is about 384.9464793202.

The spelling of 57042829 in words is "fifty-seven million, forty-two thousand, eight hundred twenty-nine".

Divisors: 1 23 83 1909 29881 687263 2480123 57042829