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22885060840 = 2351997286493
BaseRepresentation
bin10101010100000011…
…100101000011101000
32012001220021112200221
4111110003211003220
5333332033421330
614302510135424
71440053543665
oct252403450350
965056245627
1022885060840
119784024a24
1245281b1574
132209317925
14117152ca6c
158de1a8b7a
hex5540e50e8

22885060840 has 32 divisors (see below), whose sum is σ = 51517351080. Its totient is φ = 9149408512.

The previous prime is 22885060837. The next prime is 22885060873. The reversal of 22885060840 is 4806058822.

It can be written as a sum of positive squares in 4 ways, for example, as 8214521956 + 14670538884 = 90634^2 + 121122^2 .

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, 63367 + ... + 223126.

Almost surely, 222885060840 is an apocalyptic number.

22885060840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22885060840 is an abundant number, since it is smaller than the sum of its proper divisors (28632290240).

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

22885060840 is a wasteful number, since it uses less digits than its factorization.

22885060840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288501 (or 288497 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 43.

The spelling of 22885060840 in words is "twenty-two billion, eight hundred eighty-five million, sixty thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1997 3994 7988 9985 15976 19970 39940 79880 286493 572986 1145972 1432465 2291944 2864930 5729860 11459720 572126521 1144253042 2288506084 2860632605 4577012168 5721265210 11442530420 22885060840