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82415307 = 31311318701
BaseRepresentation
bin1001110100110…
…00111011001011
312202002010112210
410322120323023
5132044242212
612102240203
72020342602
oct472307313
9182063483
1082415307
1142580927
1223726063
13140c7870
14ad34a39
15737e53c
hex4e98ecb

82415307 has 16 divisors (see below), whose sum is σ = 119393568. Its totient is φ = 50265600.

The previous prime is 82415237. The next prime is 82415323. The reversal of 82415307 is 70351428.

It is not a de Polignac number, because 82415307 - 28 = 82415051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82415357) 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, 4944 + ... + 13757.

It is an arithmetic number, because the mean of its divisors is an integer number (7462098).

Almost surely, 282415307 is an apocalyptic number.

82415307 is a deficient number, since it is larger than the sum of its proper divisors (36978261).

82415307 is a wasteful number, since it uses less digits than its factorization.

82415307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18830.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 82415307 is about 9078.2876689385. The cubic root of 82415307 is about 435.1803664769.

The spelling of 82415307 in words is "eighty-two million, four hundred fifteen thousand, three hundred seven".

Divisors: 1 3 13 39 113 339 1469 4407 18701 56103 243113 729339 2113213 6339639 27471769 82415307