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82053879 = 337972167
BaseRepresentation
bin1001110010000…
…00101011110111
312201101202202120
410321000223313
5132001211004
612050411023
72014306065
oct471005367
9181352676
1082053879
1142354326
1223590a73
1313ccc1bb
14ac7d035
15730c3d9
hex4e40af7

82053879 has 8 divisors (see below), whose sum is σ = 109695360. Its totient is φ = 54557496.

The previous prime is 82053871. The next prime is 82053899. The reversal of 82053879 is 97835028.

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

It is not a de Polignac number, because 82053879 - 23 = 82053871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82053879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82053871) 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, 34947 + ... + 37220.

It is an arithmetic number, because the mean of its divisors is an integer number (13711920).

Almost surely, 282053879 is an apocalyptic number.

82053879 is a deficient number, since it is larger than the sum of its proper divisors (27641481).

82053879 is a wasteful number, since it uses less digits than its factorization.

82053879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72549.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 82053879 is about 9058.3596197104. The cubic root of 82053879 is about 434.5432807188.

The spelling of 82053879 in words is "eighty-two million, fifty-three thousand, eight hundred seventy-nine".

Divisors: 1 3 379 1137 72167 216501 27351293 82053879