Search a number
-
+
57103073 = 471214959
BaseRepresentation
bin1101100111010…
…1001011100001
310222110010200122
43121311023201
5104104244243
65355530025
71262240156
oct331651341
9128403618
1057103073
112a262425
1217159915
13baa4501
14782622d
15502e668
hex36752e1

57103073 has 4 divisors (see below), whose sum is σ = 58318080. Its totient is φ = 55888068.

The previous prime is 57103069. The next prime is 57103121. The reversal of 57103073 is 37030175.

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 a cyclic number.

It is not a de Polignac number, because 57103073 - 22 = 57103069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57103373) 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, 607433 + ... + 607526.

It is an arithmetic number, because the mean of its divisors is an integer number (14579520).

Almost surely, 257103073 is an apocalyptic number.

It is an amenable number.

57103073 is a deficient number, since it is larger than the sum of its proper divisors (1215007).

57103073 is a wasteful number, since it uses less digits than its factorization.

57103073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215006.

The product of its (nonzero) digits is 2205, while the sum is 26.

The square root of 57103073 is about 7556.6575282991. The cubic root of 57103073 is about 385.0819480364.

The spelling of 57103073 in words is "fifty-seven million, one hundred three thousand, seventy-three".

Divisors: 1 47 1214959 57103073