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23431020252 = 2231952585021
BaseRepresentation
bin10101110100100110…
…001111111011011100
32020110221121011012220
4111310212033323130
5340441320122002
614433012025340
71456433246253
oct256446177334
966427534186
1023431020252
119a34222352
12465b002250
132295471c33
1411c3c4979a
1592209e7bc
hex57498fedc

23431020252 has 12 divisors (see below), whose sum is σ = 54672380616. Its totient is φ = 7810340080.

The previous prime is 23431020227. The next prime is 23431020289. The reversal of 23431020252 is 25202013432.

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

It is a super-3 number, since 3×234310202523 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976292499 + ... + 976292522.

It is an arithmetic number, because the mean of its divisors is an integer number (4556031718).

Almost surely, 223431020252 is an apocalyptic number.

It is an amenable number.

23431020252 is an abundant number, since it is smaller than the sum of its proper divisors (31241360364).

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

23431020252 is a wasteful number, since it uses less digits than its factorization.

23431020252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952585028 (or 1952585026 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 23431020252 its reverse (25202013432), we get a palindrome (48633033684).

The spelling of 23431020252 in words is "twenty-three billion, four hundred thirty-one million, twenty thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 1952585021 3905170042 5857755063 7810340084 11715510126 23431020252