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23015403340 = 2251150770167
BaseRepresentation
bin10101011011110100…
…110010111101001100
32012101222112121222221
4111123310302331030
5334113420401330
614323443545124
71443225462166
oct253364627514
965358477887
1023015403340
1198406601a6
12456398b1a4
13222a323277
14118497b936
158ea853b7a
hex55bd32f4c

23015403340 has 12 divisors (see below), whose sum is σ = 48332347056. Its totient is φ = 9206161328.

The previous prime is 23015403337. The next prime is 23015403343. The reversal of 23015403340 is 4330451032.

It is an interprime number because it is at equal distance from previous prime (23015403337) and next prime (23015403343).

It is not an unprimeable number, because it can be changed into a prime (23015403343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575385064 + ... + 575385103.

It is an arithmetic number, because the mean of its divisors is an integer number (4027695588).

Almost surely, 223015403340 is an apocalyptic number.

23015403340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23015403340 is an abundant number, since it is smaller than the sum of its proper divisors (25316943716).

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

23015403340 is a wasteful number, since it uses less digits than its factorization.

23015403340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150770176 (or 1150770174 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 23015403340 its reverse (4330451032), we get a palindrome (27345854372).

The spelling of 23015403340 in words is "twenty-three billion, fifteen million, four hundred three thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1150770167 2301540334 4603080668 5753850835 11507701670 23015403340