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23134243421 = 191669172949
BaseRepresentation
bin10101100010111010…
…001000101001011101
32012201021011022221102
4111202322020221131
5334334331242141
614343331042445
71446200552552
oct254272105135
965637138842
1023134243421
1198a174a543
124597740425
132248b32243
141196674a29
15905eca99b
hex562e88a5d

23134243421 has 8 divisors (see below), whose sum is σ = 24353628000. Its totient is φ = 21915038160.

The previous prime is 23134243411. The next prime is 23134243453. The reversal of 23134243421 is 12434243132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23134243421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23134243411) 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, 280655 + ... + 353603.

It is an arithmetic number, because the mean of its divisors is an integer number (3044203500).

Almost surely, 223134243421 is an apocalyptic number.

It is an amenable number.

23134243421 is a deficient number, since it is larger than the sum of its proper divisors (1219384579).

23134243421 is a wasteful number, since it uses less digits than its factorization.

23134243421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89659.

The product of its digits is 13824, while the sum is 29.

Adding to 23134243421 its reverse (12434243132), we get a palindrome (35568486553).

The spelling of 23134243421 in words is "twenty-three billion, one hundred thirty-four million, two hundred forty-three thousand, four hundred twenty-one".

Divisors: 1 19 16691 72949 317129 1386031 1217591759 23134243421