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83880723 = 373607631
BaseRepresentation
bin1001111111111…
…10101100010011
312211211120201110
410333332230103
5132433140343
612153504403
72035655133
oct477765423
9184746643
1083880723
1143391913
1224112103
13144bb884
14b1d6ac3
15756d833
hex4ffeb13

83880723 has 16 divisors (see below), whose sum is σ = 113739776. Its totient is φ = 54976320.

The previous prime is 83880683. The next prime is 83880751. The reversal of 83880723 is 32708838.

It is a happy number.

It is not a de Polignac number, because 83880723 - 29 = 83880211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83887723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132618 + ... + 133248.

It is an arithmetic number, because the mean of its divisors is an integer number (7108736).

Almost surely, 283880723 is an apocalyptic number.

83880723 is a deficient number, since it is larger than the sum of its proper divisors (29859053).

83880723 is a wasteful number, since it uses less digits than its factorization.

83880723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 83880723 is about 9158.6419844866. The cubic root of 83880723 is about 437.7445237700.

The spelling of 83880723 in words is "eighty-three million, eight hundred eighty thousand, seven hundred twenty-three".

Divisors: 1 3 73 219 607 631 1821 1893 44311 46063 132933 138189 383017 1149051 27960241 83880723