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82103615 = 5111492793
BaseRepresentation
bin1001110010011…
…00110100111111
312201111021222122
410321030310333
5132004303430
612051433155
72014604066
oct471146477
9181437878
1082103615
1142388730
12235b57bb
1314018a29
14ac931dd
15731bee5
hex4e4cd3f

82103615 has 8 divisors (see below), whose sum is σ = 107481168. Its totient is φ = 59711680.

The previous prime is 82103597. The next prime is 82103627. The reversal of 82103615 is 51630128.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82103615 - 212 = 82099519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746342 + ... + 746451.

It is an arithmetic number, because the mean of its divisors is an integer number (13435146).

Almost surely, 282103615 is an apocalyptic number.

82103615 is a deficient number, since it is larger than the sum of its proper divisors (25377553).

82103615 is a wasteful number, since it uses less digits than its factorization.

82103615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492809.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 82103615 is about 9061.1045132478. The cubic root of 82103615 is about 434.6310607630.

The spelling of 82103615 in words is "eighty-two million, one hundred three thousand, six hundred fifteen".

Divisors: 1 5 11 55 1492793 7463965 16420723 82103615