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23061231252 = 2233213529919
BaseRepresentation
bin10101011110100011…
…100111011010010100
32012112011202221002000
4111132203213122110
5334212133400002
614332202115300
71444323142233
oct253643473224
965464687060
1023061231252
119864511404
1245771abb30
13223697a687
14118aaaab1a
158ee8a761c
hex55e8e7694

23061231252 has 24 divisors (see below), whose sum is σ = 59788377600. Its totient is φ = 7687077048.

The previous prime is 23061231191. The next prime is 23061231253. The reversal of 23061231252 is 25213216032.

It is a happy number.

23061231252 is a `hidden beast` number, since 2 + 30 + 612 + 3 + 12 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23061231253) 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, 106764852 + ... + 106765067.

It is an arithmetic number, because the mean of its divisors is an integer number (2491182400).

Almost surely, 223061231252 is an apocalyptic number.

It is an amenable number.

23061231252 is an abundant number, since it is smaller than the sum of its proper divisors (36727146348).

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

23061231252 is a wasteful number, since it uses less digits than its factorization.

23061231252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213529932 (or 213529924 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 23061231252 its reverse (25213216032), we get a palindrome (48274447284).

The spelling of 23061231252 in words is "twenty-three billion, sixty-one million, two hundred thirty-one thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 213529919 427059838 640589757 854119676 1281179514 1921769271 2562359028 3843538542 5765307813 7687077084 11530615626 23061231252