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23405103425 = 5211531605839
BaseRepresentation
bin10101110011000011…
…011000100101000001
32020102010211110000102
4111303003120211001
5340413201302200
614430244332145
71456000045064
oct256303304501
966363743012
1023405103425
119a20630690
1246523a4055
13228cc99632
1411c06208db
1591eb806d5
hex5730d8941

23405103425 has 24 divisors (see below), whose sum is σ = 32258113920. Its totient is φ = 16700715200.

The previous prime is 23405103409. The next prime is 23405103437. The reversal of 23405103425 is 52430150432.

It is a happy number.

It is not a de Polignac number, because 23405103425 - 24 = 23405103409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 788345 + ... + 817494.

It is an arithmetic number, because the mean of its divisors is an integer number (1344088080).

Almost surely, 223405103425 is an apocalyptic number.

23405103425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23405103425 is a deficient number, since it is larger than the sum of its proper divisors (8853010495).

23405103425 is a wasteful number, since it uses less digits than its factorization.

23405103425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605913 (or 1605908 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 23405103425 its reverse (52430150432), we get a palindrome (75835253857).

The spelling of 23405103425 in words is "twenty-three billion, four hundred five million, one hundred three thousand, four hundred twenty-five".

Divisors: 1 5 11 25 53 55 265 275 583 1325 2915 14575 1605839 8029195 17664229 40145975 85109467 88321145 425547335 441605725 936204137 2127736675 4681020685 23405103425