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23011212302 = 2132309383303
BaseRepresentation
bin10101011011100100…
…110011110000001110
32012101200122200222022
4111123210303300032
5334111332243202
614323214050142
71443145035341
oct253344636016
965350580868
1023011212302
119839258431
1245624a9952
1322294b6770
1411841aa458
158ea2c6ea2
hex55b933c0e

23011212302 has 16 divisors (see below), whose sum is σ = 37188154080. Its totient is φ = 10615932192.

The previous prime is 23011212299. The next prime is 23011212307. The reversal of 23011212302 is 20321211032.

It is a super-2 number, since 2×230112123022 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011212307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131618 + ... + 251685.

It is an arithmetic number, because the mean of its divisors is an integer number (2324259630).

Almost surely, 223011212302 is an apocalyptic number.

23011212302 is a deficient number, since it is larger than the sum of its proper divisors (14176941778).

23011212302 is a wasteful number, since it uses less digits than its factorization.

23011212302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385627.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23011212302 its reverse (20321211032), we get a palindrome (43332423334).

The spelling of 23011212302 in words is "twenty-three billion, eleven million, two hundred twelve thousand, three hundred two".

Divisors: 1 2 13 26 2309 4618 30017 60034 383303 766606 4982939 9965878 885046627 1770093254 11505606151 23011212302