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79940034 = 234493457
BaseRepresentation
bin1001100001111…
…00100111000010
312120102101010000
410300330213002
5130431040114
611533220430
71660323216
oct460744702
9176371100
1079940034
1141140149
1222931716
131373bcc5
14a88c946
157040e09
hex4c3c9c2

79940034 has 20 divisors (see below), whose sum is σ = 179125254. Its totient is φ = 26646624.

The previous prime is 79940009. The next prime is 79940057. The reversal of 79940034 is 43004997.

It can be written as a sum of positive squares in only one way, i.e., 60886809 + 19053225 = 7803^2 + 4365^2 .

It is a super-3 number, since 3×799400343 (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 246567 + ... + 246890.

Almost surely, 279940034 is an apocalyptic number.

79940034 is an abundant number, since it is smaller than the sum of its proper divisors (99185220).

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

79940034 is a wasteful number, since it uses less digits than its factorization.

79940034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493471 (or 493462 counting only the distinct ones).

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

The square root of 79940034 is about 8940.9190802736. The cubic root of 79940034 is about 430.7792504031.

The spelling of 79940034 in words is "seventy-nine million, nine hundred forty thousand, thirty-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 493457 986914 1480371 2960742 4441113 8882226 13323339 26646678 39970017 79940034