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82813051 = 617119121
BaseRepresentation
bin1001110111110…
…10000001111011
312202211100011001
410323322001323
5132200004201
612114545431
72023620316
oct473720173
9182740131
1082813051
1142822742
1223898277
1314206909
14add997d
15740c301
hex4efa07b

82813051 has 8 divisors (see below), whose sum is σ = 85360608. Its totient is φ = 80304000.

The previous prime is 82813037. The next prime is 82813061. The reversal of 82813051 is 15031828.

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

It is a cyclic number.

It is not a de Polignac number, because 82813051 - 225 = 49258619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82813021) 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, 5230 + ... + 13891.

It is an arithmetic number, because the mean of its divisors is an integer number (10670076).

Almost surely, 282813051 is an apocalyptic number.

82813051 is a deficient number, since it is larger than the sum of its proper divisors (2547557).

82813051 is a wasteful number, since it uses less digits than its factorization.

82813051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19253.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 82813051 is about 9100.1676358186. The cubic root of 82813051 is about 435.8793170320.

Adding to 82813051 its reverse (15031828), we get a palindrome (97844879).

The spelling of 82813051 in words is "eighty-two million, eight hundred thirteen thousand, fifty-one".

Divisors: 1 61 71 4331 19121 1166381 1357591 82813051