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23300021244 = 2231941668437
BaseRepresentation
bin10101101100110010…
…100001101111111100
32020010211002201100210
4111230302201233330
5340204301134434
614412012152420
71453252625043
oct255462415774
966124081323
1023300021244
119977288905
124623168710
132274296826
1411b06a955a
15915824ee9
hex56cca1bfc

23300021244 has 12 divisors (see below), whose sum is σ = 54366716264. Its totient is φ = 7766673744.

The previous prime is 23300021243. The next prime is 23300021257. The reversal of 23300021244 is 44212000332.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 23300021244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23300021243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970834207 + ... + 970834230.

Almost surely, 223300021244 is an apocalyptic number.

It is an amenable number.

23300021244 is an abundant number, since it is smaller than the sum of its proper divisors (31066695020).

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

23300021244 is a wasteful number, since it uses less digits than its factorization.

23300021244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941668444 (or 1941668442 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 23300021244 its reverse (44212000332), we get a palindrome (67512021576).

The spelling of 23300021244 in words is "twenty-three billion, three hundred million, twenty-one thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 1941668437 3883336874 5825005311 7766673748 11650010622 23300021244