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79999952 = 2443116279
BaseRepresentation
bin1001100010010…
…11001111010000
312120112102022012
410301023033100
5130434444302
611534402052
71660663004
oct461131720
9176472265
1079999952
114118116a
1222960328
1313760366
14a8a6704
157053a52
hex4c4b3d0

79999952 has 20 divisors (see below), whose sum is σ = 158605920. Its totient is φ = 39069408.

The previous prime is 79999879. The next prime is 79999973. The reversal of 79999952 is 25999997.

It is a junction number, because it is equal to n+sod(n) for n = 79999891 and 79999900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57452 + ... + 58827.

It is an arithmetic number, because the mean of its divisors is an integer number (7930296).

Almost surely, 279999952 is an apocalyptic number.

It is an amenable number.

79999952 is a deficient number, since it is larger than the sum of its proper divisors (78605968).

79999952 is a wasteful number, since it uses less digits than its factorization.

79999952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116330 (or 116324 counting only the distinct ones).

The product of its digits is 4133430, while the sum is 59.

The square root of 79999952 is about 8944.2692267172. The cubic root of 79999952 is about 430.8868518290.

It can be divided in two parts, 7999995 and 2, that added together give a palindrome (7999997).

The spelling of 79999952 in words is "seventy-nine million, nine hundred ninety-nine thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 43 86 172 344 688 116279 232558 465116 930232 1860464 4999997 9999994 19999988 39999976 79999952