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23002114520 = 23571121739937
BaseRepresentation
bin10101011011000010…
…000110100111011000
32012101001112111011102
4111123002012213120
5334102020131040
614322251050532
71443004514240
oct253302064730
965331474142
1023002114520
119834104100
12455b440a48
13222764c768
141182cbcb20
158e95cb515
hex55b0869d8

23002114520 has 192 divisors, whose sum is σ = 68840331840. Its totient is φ = 6747586560.

The previous prime is 23002114511. The next prime is 23002114549. The reversal of 23002114520 is 2541120032.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23002114492 and 23002114501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 555992 + ... + 595928.

It is an arithmetic number, because the mean of its divisors is an integer number (358543395).

Almost surely, 223002114520 is an apocalyptic number.

23002114520 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 23002114520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34420165920).

23002114520 is an abundant number, since it is smaller than the sum of its proper divisors (45838217320).

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

23002114520 is a wasteful number, since it uses less digits than its factorization.

23002114520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39994 (or 39979 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 23002114520 its reverse (2541120032), we get a palindrome (25543234552).

The spelling of 23002114520 in words is "twenty-three billion, two million, one hundred fourteen thousand, five hundred twenty".