Search a number
-
+
79630146 = 2324423897
BaseRepresentation
bin1001011111100…
…00111101000010
312112211122000200
410233300331002
5130341131041
611522430030
71654562601
oct457607502
9175748020
1079630146
1140a49342
1222802316
1313660c3b
14a80ba38
156ece1b6
hex4bf0f42

79630146 has 12 divisors (see below), whose sum is σ = 172532022. Its totient is φ = 26543376.

The previous prime is 79630139. The next prime is 79630147. The reversal of 79630146 is 64103697.

79630146 is a `hidden beast` number, since 7 + 9 + 630 + 14 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 74390625 + 5239521 = 8625^2 + 2289^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 79630146.

It is not an unprimeable number, because it can be changed into a prime (79630147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2211931 + ... + 2211966.

Almost surely, 279630146 is an apocalyptic number.

79630146 is an abundant number, since it is smaller than the sum of its proper divisors (92901876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79630146 is a wasteful number, since it uses less digits than its factorization.

79630146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423905 (or 4423902 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 79630146 is about 8923.5724908805. The cubic root of 79630146 is about 430.2218901670.

The spelling of 79630146 in words is "seventy-nine million, six hundred thirty thousand, one hundred forty-six".

Divisors: 1 2 3 6 9 18 4423897 8847794 13271691 26543382 39815073 79630146