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90874772000 = 255322718693
BaseRepresentation
bin101010010100010001…
…1101111101000100000
322200120012220201201022
41110220203233220200
52442102420201000
6105425225425012
76364650550145
oct1245043575040
9280505821638
1090874772000
11355a3492261
121574193b168
138753124a4c
14458116c3cc
15256d073585
hex15288efa20

90874772000 has 48 divisors (see below), whose sum is σ = 223279324632. Its totient is φ = 36349907200.

The previous prime is 90874771987. The next prime is 90874772039. The reversal of 90874772000 is 27747809.

It can be written as a sum of positive squares in 4 ways, for example, as 36479472016 + 54395299984 = 190996^2 + 233228^2 .

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, 11355347 + ... + 11363346.

Almost surely, 290874772000 is an apocalyptic number.

It is an amenable number.

90874772000 is an abundant number, since it is smaller than the sum of its proper divisors (132404552632).

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

90874772000 is a wasteful number, since it uses less digits than its factorization.

90874772000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22718718 (or 22718700 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 44.

The spelling of 90874772000 in words is "ninety billion, eight hundred seventy-four million, seven hundred seventy-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 22718693 45437386 90874772 113593465 181749544 227186930 363499088 454373860 567967325 726998176 908747720 1135934650 1817495440 2271869300 2839836625 3634990880 4543738600 5679673250 9087477200 11359346500 18174954400 22718693000 45437386000 90874772000