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84888980 = 22511385859
BaseRepresentation
bin1010000111101…
…00110110010100
312220201210210022
411003310312110
5133212421410
612231244312
72050354511
oct503646624
9186653708
1084888980
1143a10390
1224519698
1314782787
14b3ba308
1576bc455
hex50f4d94

84888980 has 24 divisors (see below), whose sum is σ = 194473440. Its totient is φ = 30868640.

The previous prime is 84888967. The next prime is 84889019. The reversal of 84888980 is 8988848.

It is a super-2 number, since 2×848889802 = 14412277850880800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192710 + ... + 193149.

It is an arithmetic number, because the mean of its divisors is an integer number (8103060).

Almost surely, 284888980 is an apocalyptic number.

It is an amenable number.

84888980 is an abundant number, since it is smaller than the sum of its proper divisors (109584460).

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

84888980 is a wasteful number, since it uses less digits than its factorization.

84888980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385879 (or 385877 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 53.

The square root of 84888980 is about 9213.5215851486. The cubic root of 84888980 is about 439.4914579195.

The spelling of 84888980 in words is "eighty-four million, eight hundred eighty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 385859 771718 1543436 1929295 3858590 4244449 7717180 8488898 16977796 21222245 42444490 84888980