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5120000215 = 511234047431
BaseRepresentation
bin1001100010010110…
…10000000011010111
3111012211011221220121
410301023100003113
540441210001330
62204015212411
7240610166221
oct46113200327
914184157817
105120000215
112198119a40
12baa817107
13637985935
14367dbb411
151ee75c17a
hex1312d00d7

5120000215 has 16 divisors (see below), whose sum is σ = 6993962496. Its totient is φ = 3561738400.

The previous prime is 5120000213. The next prime is 5120000219.

5120000215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5120000215 - 21 = 5120000213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120000213) 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, 2022451 + ... + 2024980.

It is an arithmetic number, because the mean of its divisors is an integer number (437122656).

Almost surely, 25120000215 is an apocalyptic number.

5120000215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5120000215 is a deficient number, since it is larger than the sum of its proper divisors (1873962281).

5120000215 is a wasteful number, since it uses less digits than its factorization.

5120000215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4047470.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 5120000215 is about 71554.1767823514. The cubic root of 5120000215 is about 1723.5477761507.

It can be divided in two parts, 5120000 and 215, that added together give a palindrome (5120215).

The spelling of 5120000215 in words is "five billion, one hundred twenty million, two hundred fifteen", and thus it is an aban number.

Divisors: 1 5 11 23 55 115 253 1265 4047431 20237155 44521741 93090913 222608705 465454565 1024000043 5120000215