Search a number
-
+
7961057 = 1319167193
BaseRepresentation
bin11110010111100111100001
3112222110111222
4132113213201
54014223212
6442344425
7124445036
oct36274741
915873458
107961057
114548295
1227bb115
1318597b0
1410b338d
15a73c72
hex7979e1

7961057 has 16 divisors (see below), whose sum is σ = 9125760. Its totient is φ = 6884352.

The previous prime is 7961029. The next prime is 7961069. The reversal of 7961057 is 7501697.

It is a cyclic number.

It is not a de Polignac number, because 7961057 - 28 = 7960801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7961087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41153 + ... + 41345.

It is an arithmetic number, because the mean of its divisors is an integer number (570360).

Almost surely, 27961057 is an apocalyptic number.

It is an amenable number.

7961057 is a deficient number, since it is larger than the sum of its proper divisors (1164703).

7961057 is a wasteful number, since it uses less digits than its factorization.

7961057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 7961057 is about 2821.5345115734. The cubic root of 7961057 is about 199.6749469889.

The spelling of 7961057 in words is "seven million, nine hundred sixty-one thousand, fifty-seven".

Divisors: 1 13 19 167 193 247 2171 2509 3173 3667 32231 41249 47671 419003 612389 7961057