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23152005145 = 529159669001
BaseRepresentation
bin10101100011111101…
…111001000000011001
32012202111120201110001
4111203331321000121
5334403403131040
614345203453001
71446504540163
oct254375710031
965674521401
1023152005145
119900781155
1245a1687161
13224c710939
141198b79933
1590783859a
hex563f79019

23152005145 has 8 divisors (see below), whose sum is σ = 28740420360. Its totient is φ = 17882928000.

The previous prime is 23152005133. The next prime is 23152005241. The reversal of 23152005145 is 54150025132.

It can be written as a sum of positive squares in 4 ways, for example, as 500551129 + 22651454016 = 22373^2 + 150504^2 .

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

It is not a de Polignac number, because 23152005145 - 27 = 23152005017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79834356 + ... + 79834645.

It is an arithmetic number, because the mean of its divisors is an integer number (3592552545).

Almost surely, 223152005145 is an apocalyptic number.

It is an amenable number.

23152005145 is a deficient number, since it is larger than the sum of its proper divisors (5588415215).

23152005145 is a wasteful number, since it uses less digits than its factorization.

23152005145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159669035.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 23152005145 in words is "twenty-three billion, one hundred fifty-two million, five thousand, one hundred forty-five".

Divisors: 1 5 29 145 159669001 798345005 4630401029 23152005145