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84025880 = 2358325309
BaseRepresentation
bin1010000001000…
…10001000011000
312212002221211122
411000202020120
5133002312010
612200544412
72040131261
oct500421030
9185087748
1084025880
1143480984
1224182108
131453c973
14b233968
15759b855
hex5022218

84025880 has 32 divisors (see below), whose sum is σ = 191343600. Its totient is φ = 33204096.

The previous prime is 84025861. The next prime is 84025891. The reversal of 84025880 is 8852048.

It is a self number, because there is not a number n which added to its sum of digits gives 84025880.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9335 + ... + 15974.

Almost surely, 284025880 is an apocalyptic number.

It is an amenable number.

84025880 is an abundant number, since it is smaller than the sum of its proper divisors (107317720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84025880 is a wasteful number, since it uses less digits than its factorization.

84025880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25403 (or 25399 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 35.

The square root of 84025880 is about 9166.5631509307. The cubic root of 84025880 is about 437.9968863369.

The spelling of 84025880 in words is "eighty-four million, twenty-five thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 83 166 332 415 664 830 1660 3320 25309 50618 101236 126545 202472 253090 506180 1012360 2100647 4201294 8402588 10503235 16805176 21006470 42012940 84025880