Search a number
-
+
52155012205 = 5229370912281
BaseRepresentation
bin110000100100101011…
…100101010001101101
311222121202212010121201
4300210223211101231
51323303140342310
635543142525501
73524310201112
oct604453452155
9158552763551
1052155012205
112013416567a
12a136736891
134bc237c48a
14274aa1a909
151553b76e3a
hexc24ae546d

52155012205 has 16 divisors (see below), whose sum is σ = 62881383600. Its totient is φ = 41527226880.

The previous prime is 52155012109. The next prime is 52155012241. The reversal of 52155012205 is 50221055125.

It can be written as a sum of positive squares in 8 ways, for example, as 3929534596 + 48225477609 = 62686^2 + 219603^2 .

It is a de Polignac number, because none of the positive numbers 2k-52155012205 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4240665 + ... + 4252945.

It is an arithmetic number, because the mean of its divisors is an integer number (3930086475).

Almost surely, 252155012205 is an apocalyptic number.

It is an amenable number.

52155012205 is a deficient number, since it is larger than the sum of its proper divisors (10726371395).

52155012205 is a wasteful number, since it uses less digits than its factorization.

52155012205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16224.

The product of its (nonzero) digits is 5000, while the sum is 28.

The spelling of 52155012205 in words is "fifty-two billion, one hundred fifty-five million, twelve thousand, two hundred five".

Divisors: 1 5 229 1145 3709 12281 18545 61405 849361 2812349 4246805 14061745 45550229 227751145 10431002441 52155012205