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872870190 = 23559493147
BaseRepresentation
bin110100000001101…
…111000100101110
32020211110101210120
4310001233010232
53241423321230
6222340345410
730426163023
oct6401570456
92224411716
10872870190
11408792325
122043a5266
1310bab7c4a
1483cd754a
155196d310
hex3406f12e

872870190 has 32 divisors (see below), whose sum is σ = 2130399360. Its totient is φ = 228819744.

The previous prime is 872870189. The next prime is 872870209. The reversal of 872870190 is 91078278.

It is a super-2 number, since 2×8728701902 = 1523804737181272200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244804 + ... + 248343.

It is an arithmetic number, because the mean of its divisors is an integer number (66574980).

Almost surely, 2872870190 is an apocalyptic number.

872870190 is an abundant number, since it is smaller than the sum of its proper divisors (1257529170).

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

872870190 is a wasteful number, since it uses less digits than its factorization.

872870190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493216.

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 872870190 is about 29544.3766222948. The cubic root of 872870190 is about 955.6889266146.

The spelling of 872870190 in words is "eight hundred seventy-two million, eight hundred seventy thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 59 118 177 295 354 590 885 1770 493147 986294 1479441 2465735 2958882 4931470 7397205 14794410 29095673 58191346 87287019 145478365 174574038 290956730 436435095 872870190