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23558138429 = 729116049943
BaseRepresentation
bin10101111100001011…
…001010101000111101
32020210210210102120112
4111330023022220331
5341221340412204
614453352355405
71462535605220
oct257413125075
966723712515
1023558138429
119a99a560a1
1246956a5b65
1322b58bbaa7
1411d6a995b7
1592d30e26e
hex57c2caa3d

23558138429 has 8 divisors (see below), whose sum is σ = 27851986560. Its totient is φ = 19496390256.

The previous prime is 23558138407. The next prime is 23558138477. The reversal of 23558138429 is 92483185532.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23558138429 - 216 = 23558072893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23558138629) 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, 58024769 + ... + 58025174.

It is an arithmetic number, because the mean of its divisors is an integer number (3481498320).

Almost surely, 223558138429 is an apocalyptic number.

23558138429 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

23558138429 is a deficient number, since it is larger than the sum of its proper divisors (4293848131).

23558138429 is a wasteful number, since it uses less digits than its factorization.

23558138429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116049979.

The product of its digits is 2073600, while the sum is 50.

The spelling of 23558138429 in words is "twenty-three billion, five hundred fifty-eight million, one hundred thirty-eight thousand, four hundred twenty-nine".

Divisors: 1 7 29 203 116049943 812349601 3365448347 23558138429