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23066313145 = 5113191321341
BaseRepresentation
bin10101011110110111…
…000000000110111001
32012112112100010010021
4111132313000012321
5334214434010040
614332503050441
71444414266241
oct253667000671
965475303107
1023066313145
119867372517
124578a40a21
132237a39805
14118b630b21
1590005d24a
hex55edc01b9

23066313145 has 16 divisors (see below), whose sum is σ = 27940434192. Its totient is φ = 18279331840.

The previous prime is 23066313143. The next prime is 23066313173. The reversal of 23066313145 is 54131366032.

It can be written as a sum of positive squares in 8 ways, for example, as 661312656 + 22405000489 = 25716^2 + 149683^2 .

It is not a de Polignac number, because 23066313145 - 21 = 23066313143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23066313145.

It is not an unprimeable number, because it can be changed into a prime (23066313143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070175 + ... + 1091515.

It is an arithmetic number, because the mean of its divisors is an integer number (1746277137).

Almost surely, 223066313145 is an apocalyptic number.

It is an amenable number.

23066313145 is a deficient number, since it is larger than the sum of its proper divisors (4874121047).

23066313145 is a wasteful number, since it uses less digits than its factorization.

23066313145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23372.

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 23066313145 its reverse (54131366032), we get a palindrome (77197679177).

The spelling of 23066313145 in words is "twenty-three billion, sixty-six million, three hundred thirteen thousand, one hundred forty-five".

Divisors: 1 5 113 565 1913 9565 21341 106705 216169 1080845 2411533 12057665 40825333 204126665 4613262629 23066313145