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72706034 = 2436611279
BaseRepresentation
bin1000101010101…
…10011111110010
312001210211221002
410111112133302
5122103043114
611114202002
71541663642
oct425263762
9161724832
1072706034
113804a135
1220423302
13120a842b
149928522
1565b27de
hex45567f2

72706034 has 16 divisors (see below), whose sum is σ = 111851520. Its totient is φ = 35426160.

The previous prime is 72706031. The next prime is 72706063. The reversal of 72706034 is 43060727.

It is a junction number, because it is equal to n+sod(n) for n = 72705988 and 72706006.

It is not an unprimeable number, because it can be changed into a prime (72706031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56207 + ... + 57485.

It is an arithmetic number, because the mean of its divisors is an integer number (6990720).

Almost surely, 272706034 is an apocalyptic number.

72706034 is a deficient number, since it is larger than the sum of its proper divisors (39145486).

72706034 is a wasteful number, since it uses less digits than its factorization.

72706034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 72706034 is about 8526.7833325352. The cubic root of 72706034 is about 417.3721678270.

The spelling of 72706034 in words is "seventy-two million, seven hundred six thousand, thirty-four".

Divisors: 1 2 43 86 661 1279 1322 2558 28423 54997 56846 109994 845419 1690838 36353017 72706034