Search a number
-
+
70160557 = 233050459
BaseRepresentation
bin1000010111010…
…01000010101101
311220000112012011
410023221002231
5120430114212
610543441221
71511232505
oct413510255
9156015164
1070160557
1136670735
121b5b6211
13116c692c
149464a05
15625d4a7
hex42e90ad

70160557 has 4 divisors (see below), whose sum is σ = 73211040. Its totient is φ = 67110076.

The previous prime is 70160527. The next prime is 70160593. The reversal of 70160557 is 75506107.

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 70160557 - 215 = 70127789 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70160507) 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, 1525207 + ... + 1525252.

It is an arithmetic number, because the mean of its divisors is an integer number (18302760).

Almost surely, 270160557 is an apocalyptic number.

It is an amenable number.

70160557 is a deficient number, since it is larger than the sum of its proper divisors (3050483).

70160557 is a wasteful number, since it uses less digits than its factorization.

70160557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050482.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 70160557 is about 8376.1898856222. The cubic root of 70160557 is about 412.4433851900.

The spelling of 70160557 in words is "seventy million, one hundred sixty thousand, five hundred fifty-seven".

Divisors: 1 23 3050459 70160557