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22320243020 = 2257120177793
BaseRepresentation
bin10100110010011000…
…111110000101001100
32010121112110211022102
4110302120332011030
5331202440234040
614130452134232
71420054635545
oct246230760514
963545424272
1022320243020
119514216a39
1243ab007378
1321492b99ba
14111a5034cc
158a97da515
hex53263e14c

22320243020 has 48 divisors (see below), whose sum is σ = 47562355008. Its totient is φ = 8796856320.

The previous prime is 22320243019. The next prime is 22320243059. The reversal of 22320243020 is 2034202322.

It is a super-3 number, since 3×223202430203 (a number of 32 digits) contains 333 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 = 22320242983 and 22320243001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2860244 + ... + 2868036.

It is an arithmetic number, because the mean of its divisors is an integer number (990882396).

Almost surely, 222320243020 is an apocalyptic number.

22320243020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22320243020 is an abundant number, since it is smaller than the sum of its proper divisors (25242111988).

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

22320243020 is a wasteful number, since it uses less digits than its factorization.

22320243020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9890 (or 9888 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 22320243020 its reverse (2034202322), we get a palindrome (24354445342).

The spelling of 22320243020 in words is "twenty-two billion, three hundred twenty million, two hundred forty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 2017 4034 7793 8068 10085 15586 20170 31172 38965 40340 77930 143207 155860 286414 553303 572828 716035 1106606 1432070 2213212 2766515 2864140 5533030 11066060 15718481 31436962 62873924 78592405 157184810 314369620 1116012151 2232024302 4464048604 5580060755 11160121510 22320243020