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22022000988 = 22313711988263
BaseRepresentation
bin10100100000100111…
…010001000101011100
32002211202021120011020
4110200213101011130
5330100113012423
614041115524140
71406503630341
oct244047210534
962752246136
1022022000988
119380933319
124327159650
1320cc586120
1410cca6a7c8
1588d5274e3
hex5209d115c

22022000988 has 48 divisors (see below), whose sum is σ = 56116763136. Its totient is φ = 6680560320.

The previous prime is 22022000981. The next prime is 22022000989. The reversal of 22022000988 is 88900022022.

It is a super-2 number, since 2×220220009882 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022000981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 983056 + ... + 1005207.

It is an arithmetic number, because the mean of its divisors is an integer number (1169099232).

Almost surely, 222022000988 is an apocalyptic number.

It is an amenable number.

22022000988 is an abundant number, since it is smaller than the sum of its proper divisors (34094762148).

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

22022000988 is a wasteful number, since it uses less digits than its factorization.

22022000988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988354 (or 1988352 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 22022000988 in words is "twenty-two billion, twenty-two million, nine hundred eighty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 13 26 39 52 71 78 142 156 213 284 426 852 923 1846 2769 3692 5538 11076 1988263 3976526 5964789 7953052 11929578 23859156 25847419 51694838 77542257 103389676 141166673 155084514 282333346 310169028 423500019 564666692 847000038 1694000076 1835166749 3670333498 5505500247 7340666996 11011000494 22022000988