Search a number
-
+
52020515015 = 571787429437
BaseRepresentation
bin110000011100101010…
…100001000011000111
311222021101202222011022
4300130222201003013
51323014222440030
635521540101355
73521055040040
oct603452410307
9158241688138
1052020515015
1120075251977
12a0b969485b
134ba054aa41
142736c098c7
151546e5ade5
hexc1caa10c7

52020515015 has 16 divisors (see below), whose sum is σ = 75539034432. Its totient is φ = 33572903424.

The previous prime is 52020514991. The next prime is 52020515023. The reversal of 52020515015 is 51051502025.

It is not a de Polignac number, because 52020515015 - 226 = 51953406151 is a prime.

It is a super-2 number, since 2×520205150152 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43714124 + ... + 43715313.

It is an arithmetic number, because the mean of its divisors is an integer number (4721189652).

Almost surely, 252020515015 is an apocalyptic number.

52020515015 is a deficient number, since it is larger than the sum of its proper divisors (23518519417).

52020515015 is a wasteful number, since it uses less digits than its factorization.

52020515015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87429466.

The product of its (nonzero) digits is 2500, while the sum is 26.

The spelling of 52020515015 in words is "fifty-two billion, twenty million, five hundred fifteen thousand, fifteen".

Divisors: 1 5 7 17 35 85 119 595 87429437 437147185 612006059 1486300429 3060030295 7431502145 10404103003 52020515015