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8102613 = 315717203
BaseRepresentation
bin11110111010001011010101
3120020122200210
4132322023111
54033240423
6445400033
7125604531
oct36721325
916218623
108102613
114634682
122869019
1318a905c
14110cbc1
15aa0b93
hex7ba2d5

8102613 has 8 divisors (see below), whose sum is σ = 10872928. Its totient is φ = 5367024.

The previous prime is 8102609. The next prime is 8102639. The reversal of 8102613 is 3162018.

Added to its reverse (3162018) it gives a triangular number (11264631 = T4746).

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

It is not a de Polignac number, because 8102613 - 22 = 8102609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8102613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8102713) 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, 8131 + ... + 9072.

It is an arithmetic number, because the mean of its divisors is an integer number (1359116).

Almost surely, 28102613 is an apocalyptic number.

It is an amenable number.

8102613 is a deficient number, since it is larger than the sum of its proper divisors (2770315).

8102613 is a wasteful number, since it uses less digits than its factorization.

8102613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17363.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 8102613 is about 2846.5089144424. The cubic root of 8102613 is about 200.8514781140.

Subtracting from 8102613 its product of nonzero digits (288), we obtain a triangular number (8102325 = T4025).

Adding to 8102613 its reverse (3162018), we get a triangular number (11264631 = T4746).

The spelling of 8102613 in words is "eight million, one hundred two thousand, six hundred thirteen".

Divisors: 1 3 157 471 17203 51609 2700871 8102613