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15154020145 = 5111991384561
BaseRepresentation
bin11100001110011111…
…11111111100110001
31110010002221222121101
432013033333330301
5222013412121040
610543415124401
71044350021515
oct160717777461
943102858541
1015154020145
11647705a6a0
122b2b073701
131576724a34
14a3a878145
155da5da09a
hex3873fff31

15154020145 has 16 divisors (see below), whose sum is σ = 19937692800. Its totient is φ = 10965715200.

The previous prime is 15154020137. The next prime is 15154020223. The reversal of 15154020145 is 54102045151.

It is not a de Polignac number, because 15154020145 - 23 = 15154020137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681336 + ... + 703225.

It is an arithmetic number, because the mean of its divisors is an integer number (1246105800).

Almost surely, 215154020145 is an apocalyptic number.

It is an amenable number.

15154020145 is a deficient number, since it is larger than the sum of its proper divisors (4783672655).

15154020145 is a wasteful number, since it uses less digits than its factorization.

15154020145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384776.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 15154020145 its reverse (54102045151), we get a palindrome (69256065296).

The spelling of 15154020145 in words is "fifteen billion, one hundred fifty-four million, twenty thousand, one hundred forty-five".

Divisors: 1 5 11 55 199 995 2189 10945 1384561 6922805 15230171 76150855 275527639 1377638195 3030804029 15154020145