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22430211320 = 23511178328591
BaseRepresentation
bin10100111000111100…
…011101110011111000
32010220012101210110102
4110320330131303320
5331414113230240
614145421134532
71422561436046
oct247074356370
963805353412
1022430211320
1195702a6830
12441b9ba448
1321660107ba
14112ad6b396
158b42ad815
hex538f1dcf8

22430211320 has 64 divisors (see below), whose sum is σ = 55088778240. Its totient is φ = 8151580800.

The previous prime is 22430211313. The next prime is 22430211329. The reversal of 22430211320 is 2311203422.

It is a super-2 number, since 2×224302113202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22430211292 and 22430211301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22430211329) 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, 770225 + ... + 798815.

It is an arithmetic number, because the mean of its divisors is an integer number (860762160).

Almost surely, 222430211320 is an apocalyptic number.

22430211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22430211320 is an abundant number, since it is smaller than the sum of its proper divisors (32658566920).

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

22430211320 is a wasteful number, since it uses less digits than its factorization.

22430211320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30396 (or 30392 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22430211320 its reverse (2311203422), we get a palindrome (24741414742).

The spelling of 22430211320 in words is "twenty-two billion, four hundred thirty million, two hundred eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 1783 3566 7132 8915 14264 17830 19613 28591 35660 39226 57182 71320 78452 98065 114364 142955 156904 196130 228728 285910 314501 392260 571820 629002 784520 1143640 1258004 1572505 2516008 3145010 6290020 12580040 50977753 101955506 203911012 254888765 407822024 509777530 560755283 1019555060 1121510566 2039110120 2243021132 2803776415 4486042264 5607552830 11215105660 22430211320