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22490022880 = 2551310812511
BaseRepresentation
bin10100111100100000…
…101000001111100000
32011001100221112111101
4110330200220033200
5332024421213010
614155355124144
71424216016553
oct247440501740
964040845441
1022490022880
1195a1039076
124437a43654
132175522a60
141134c9a69a
158b967573a
hex53c8283e0

22490022880 has 48 divisors (see below), whose sum is σ = 57219813504. Its totient is φ = 8304007680.

The previous prime is 22490022871. The next prime is 22490022881. The reversal of 22490022880 is 8822009422.

It is a super-2 number, since 2×224900228802 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22490022881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5404176 + ... + 5408335.

It is an arithmetic number, because the mean of its divisors is an integer number (1192079448).

Almost surely, 222490022880 is an apocalyptic number.

22490022880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22490022880 is an abundant number, since it is smaller than the sum of its proper divisors (34729790624).

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

22490022880 is a wasteful number, since it uses less digits than its factorization.

22490022880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10812539 (or 10812531 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 22490022880 in words is "twenty-two billion, four hundred ninety million, twenty-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 10812511 21625022 43250044 54062555 86500088 108125110 140562643 173000176 216250220 281125286 346000352 432500440 562250572 702813215 865000880 1124501144 1405626430 1730001760 2249002288 2811252860 4498004576 5622505720 11245011440 22490022880