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23000129460 = 2232571131199269
BaseRepresentation
bin10101011010111010…
…100001111110110100
32012100220210122011200
4111122322201332310
5334101013120320
614322140332500
71442651606010
oct253272417664
965326718150
1023000129460
119832a78760
12455a844130
132227106079
141182923540
158e9338290
hex55aea1fb4

23000129460 has 576 divisors, whose sum is σ = 90574848000. Its totient is φ = 4584729600.

The previous prime is 23000129459. The next prime is 23000129461. The reversal of 23000129460 is 6492100032.

It is an interprime number because it is at equal distance from previous prime (23000129459) and next prime (23000129461).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000129461) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 85502206 + ... + 85502474.

It is an arithmetic number, because the mean of its divisors is an integer number (157248000).

Almost surely, 223000129460 is an apocalyptic number.

23000129460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23000129460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45287424000).

23000129460 is an abundant number, since it is smaller than the sum of its proper divisors (67574718540).

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

23000129460 is a wasteful number, since it uses less digits than its factorization.

23000129460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 23000129460 its reverse (6492100032), we get a palindrome (29492229492).

The spelling of 23000129460 in words is "twenty-three billion, one hundred twenty-nine thousand, four hundred sixty".