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23223311320 = 2351152780253
BaseRepresentation
bin10101101000001101…
…111001101111011000
32012221110202110010111
4111220031321233120
5340030131430240
614400232054104
71451331613666
oct255015715730
965843673114
1023223311320
119937a54580
124601534334
132261418b41
1411a441bc36
1590dc211ea
hex568379bd8

23223311320 has 32 divisors (see below), whose sum is σ = 57002674320. Its totient is φ = 8444840320.

The previous prime is 23223311291. The next prime is 23223311327. The reversal of 23223311320 is 2311332232.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 23223311291 and 23223311300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23223311327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26389687 + ... + 26390566.

Almost surely, 223223311320 is an apocalyptic number.

23223311320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23223311320 is an abundant number, since it is smaller than the sum of its proper divisors (33779363000).

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

23223311320 is a wasteful number, since it uses less digits than its factorization.

23223311320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52780275 (or 52780271 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23223311320 its reverse (2311332232), we get a palindrome (25534643552).

The spelling of 23223311320 in words is "twenty-three billion, two hundred twenty-three million, three hundred eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 52780253 105560506 211121012 263901265 422242024 527802530 580582783 1055605060 1161165566 2111210120 2322331132 2902913915 4644662264 5805827830 11611655660 23223311320