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82888905 = 3511691727
BaseRepresentation
bin1001111000011…
…00100011001001
312202222012012110
410330030203021
5132204421110
612120332533
72024354421
oct474144311
9182865173
1082888905
1142874730
1223914149
13142322b8
14b019481
157424a20
hex4f0c8c9

82888905 has 32 divisors (see below), whose sum is σ = 145087488. Its totient is φ = 40075200.

The previous prime is 82888901. The next prime is 82888913. The reversal of 82888905 is 50988828.

It is not a de Polignac number, because 82888905 - 22 = 82888901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82888901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113652 + ... + 114378.

It is an arithmetic number, because the mean of its divisors is an integer number (4533984).

Almost surely, 282888905 is an apocalyptic number.

It is an amenable number.

82888905 is a deficient number, since it is larger than the sum of its proper divisors (62198583).

82888905 is a wasteful number, since it uses less digits than its factorization.

82888905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437.

The product of its (nonzero) digits is 368640, while the sum is 48.

The square root of 82888905 is about 9104.3344073029. The cubic root of 82888905 is about 436.0123600710.

The spelling of 82888905 in words is "eighty-two million, eight hundred eighty-eight thousand, nine hundred five".

Divisors: 1 3 5 11 15 33 55 165 691 727 2073 2181 3455 3635 7601 7997 10365 10905 22803 23991 38005 39985 114015 119955 502357 1507071 2511785 5525927 7535355 16577781 27629635 82888905