Search a number
-
+
79670480 = 245995881
BaseRepresentation
bin1001011111110…
…10110011010000
312112220200100112
410233322303100
5130343423410
611523340452
71655121311
oct457726320
9175820315
1079670480
1140a7667a
1222821728
13136763c6
14a81c608
156edb105
hex4bfacd0

79670480 has 20 divisors (see below), whose sum is σ = 185234052. Its totient is φ = 31868160.

The previous prime is 79670471. The next prime is 79670489. The reversal of 79670480 is 8407697.

It is an interprime number because it is at equal distance from previous prime (79670471) and next prime (79670489).

It can be written as a sum of positive squares in 2 ways, for example, as 8976016 + 70694464 = 2996^2 + 8408^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79670489) 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, 497861 + ... + 498020.

Almost surely, 279670480 is an apocalyptic number.

It is an amenable number.

79670480 is an abundant number, since it is smaller than the sum of its proper divisors (105563572).

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

79670480 is a wasteful number, since it uses less digits than its factorization.

79670480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995894 (or 995888 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 79670480 is about 8925.8321740889. The cubic root of 79670480 is about 430.2945160992.

The spelling of 79670480 in words is "seventy-nine million, six hundred seventy thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 995881 1991762 3983524 4979405 7967048 9958810 15934096 19917620 39835240 79670480