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83074613 = 151550163
BaseRepresentation
bin1001111001110…
…01111000110101
312210022121221112
410330321320311
5132231341423
612124324405
72026060016
oct474717065
9183277845
1083074613
1142991206
12239a3705
131429899b
14b06700d
15745ea78
hex4f39e35

83074613 has 4 divisors (see below), whose sum is σ = 83624928. Its totient is φ = 82524300.

The previous prime is 83074609. The next prime is 83074633. The reversal of 83074613 is 31647038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31647038 = 215823519.

It is a cyclic number.

It is not a de Polignac number, because 83074613 - 22 = 83074609 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 83074613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83074603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274931 + ... + 275232.

It is an arithmetic number, because the mean of its divisors is an integer number (20906232).

Almost surely, 283074613 is an apocalyptic number.

It is an amenable number.

83074613 is a deficient number, since it is larger than the sum of its proper divisors (550315).

83074613 is a wasteful number, since it uses less digits than its factorization.

83074613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550314.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 83074613 is about 9114.5275796390. The cubic root of 83074613 is about 436.3377377082.

The spelling of 83074613 in words is "eighty-three million, seventy-four thousand, six hundred thirteen".

Divisors: 1 151 550163 83074613