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23545054531 = 461228122391
BaseRepresentation
bin10101111011011001…
…010000010101000011
32020202220011200211201
4111323121100111003
5341210013221111
614452204122031
71462316442565
oct257331202503
966686150751
1023545054531
119a92629a59
124691236317
1322b2c8a63b
1411d5051335
1592c0c76c1
hex57b650543

23545054531 has 8 divisors (see below), whose sum is σ = 23607527328. Its totient is φ = 23482632000.

The previous prime is 23545054457. The next prime is 23545054549. The reversal of 23545054531 is 13545054532.

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

It is a cyclic number.

It is not a de Polignac number, because 23545054531 - 29 = 23545054019 is a prime.

It is a super-2 number, since 2×235450545312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23545054591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040346 + ... + 1062736.

It is an arithmetic number, because the mean of its divisors is an integer number (2950940916).

Almost surely, 223545054531 is an apocalyptic number.

23545054531 is a deficient number, since it is larger than the sum of its proper divisors (62472797).

23545054531 is a wasteful number, since it uses less digits than its factorization.

23545054531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25133.

The product of its (nonzero) digits is 180000, while the sum is 37.

Subtracting from 23545054531 its reverse (13545054532), we obtain a palindrome (9999999999).

The spelling of 23545054531 in words is "twenty-three billion, five hundred forty-five million, fifty-four thousand, five hundred thirty-one".

Divisors: 1 461 2281 22391 1051541 10322251 51073871 23545054531