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23985321324 = 2231998776777
BaseRepresentation
bin10110010101101000…
…101111010101101100
32021220120121120100020
4112111220233111230
5343110220240244
615004012402140
71506243603336
oct262550572554
967816546306
1023985321324
11a1990a7a08
124794776350
13235325a033
1412376d8456
15955a91d19
hex595a2f56c

23985321324 has 12 divisors (see below), whose sum is σ = 55965749784. Its totient is φ = 7995107104.

The previous prime is 23985321323. The next prime is 23985321341. The reversal of 23985321324 is 42312358932.

It is a happy number.

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

It is a super-2 number, since 2×239853213242 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23985321323) 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 3 ways as a sum of consecutive naturals, for example, 999388377 + ... + 999388400.

It is an arithmetic number, because the mean of its divisors is an integer number (4663812482).

Almost surely, 223985321324 is an apocalyptic number.

It is an amenable number.

23985321324 is an abundant number, since it is smaller than the sum of its proper divisors (31980428460).

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

23985321324 is a wasteful number, since it uses less digits than its factorization.

23985321324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998776784 (or 1998776782 counting only the distinct ones).

The product of its digits is 311040, while the sum is 42.

The spelling of 23985321324 in words is "twenty-three billion, nine hundred eighty-five million, three hundred twenty-one thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 12 1998776777 3997553554 5996330331 7995107108 11992660662 23985321324