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82015955 = 572334759
BaseRepresentation
bin1001110001101…
…11011011010011
312201022211201222
410320313123103
5131444002310
612045515255
72014060400
oct470673323
9181284658
1082015955
114232888a
1223572b2b
1313cb7b68
14ac6d2a7
157301055
hex4e376d3

82015955 has 12 divisors (see below), whose sum is σ = 114487920. Its totient is φ = 56239344.

The previous prime is 82015943. The next prime is 82015961. The reversal of 82015955 is 55951028.

It is not a de Polignac number, because 82015955 - 26 = 82015891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167135 + ... + 167624.

It is an arithmetic number, because the mean of its divisors is an integer number (9540660).

Almost surely, 282015955 is an apocalyptic number.

82015955 is a deficient number, since it is larger than the sum of its proper divisors (32471965).

82015955 is a wasteful number, since it uses less digits than its factorization.

82015955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334778 (or 334771 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 82015955 is about 9056.2660627877. The cubic root of 82015955 is about 434.4763240675.

The spelling of 82015955 in words is "eighty-two million, fifteen thousand, nine hundred fifty-five".

Divisors: 1 5 7 35 49 245 334759 1673795 2343313 11716565 16403191 82015955