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870090980 = 225113954959
BaseRepresentation
bin110011110111001…
…000100011100100
32020122020012102212
4303313020203210
53240220402410
6222201022552
730363436253
oct6367104344
92218205385
10870090980
11407164260
12203484a58
1310b353c45
14837b279a
15515beb05
hex33dc88e4

870090980 has 24 divisors (see below), whose sum is σ = 1993299840. Its totient is φ = 316396640.

The previous prime is 870090961. The next prime is 870091021. The reversal of 870090980 is 89090078.

870090980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977260 + ... + 1977699.

It is an arithmetic number, because the mean of its divisors is an integer number (83054160).

Almost surely, 2870090980 is an apocalyptic number.

It is an amenable number.

870090980 is an abundant number, since it is smaller than the sum of its proper divisors (1123208860).

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

870090980 is a wasteful number, since it uses less digits than its factorization.

870090980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954979 (or 3954977 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 870090980 is about 29497.3046226261. The cubic root of 870090980 is about 954.6735468534.

The spelling of 870090980 in words is "eight hundred seventy million, ninety thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 3954959 7909918 15819836 19774795 39549590 43504549 79099180 87009098 174018196 217522745 435045490 870090980