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872084980 = 225133354173
BaseRepresentation
bin110011111110101…
…111010111110100
32020202222111200201
4303332233113310
53241223204410
6222311450244
730416412544
oct6376572764
92222874621
10872084980
114082a6398
12204086984
1310b8a1720
1483b71324
155186583a
hex33faf5f4

872084980 has 24 divisors (see below), whose sum is σ = 1972254312. Its totient is φ = 322000512.

The previous prime is 872084929. The next prime is 872085001. The reversal of 872084980 is 89480278.

It can be written as a sum of positive squares in 4 ways, for example, as 300304 + 871784676 = 548^2 + 29526^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 872084980.

It is a congruent number.

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, 1676827 + ... + 1677346.

It is an arithmetic number, because the mean of its divisors is an integer number (82177263).

Almost surely, 2872084980 is an apocalyptic number.

It is an amenable number.

872084980 is an abundant number, since it is smaller than the sum of its proper divisors (1100169332).

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

872084980 is a wasteful number, since it uses less digits than its factorization.

872084980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354195 (or 3354193 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 872084980 is about 29531.0849783749. The cubic root of 872084980 is about 955.4022701560.

The spelling of 872084980 in words is "eight hundred seventy-two million, eighty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 3354173 6708346 13416692 16770865 33541730 43604249 67083460 87208498 174416996 218021245 436042490 872084980