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2215120415 = 51923317057
BaseRepresentation
bin1000010000001000…
…0000111000011111
312201101010202221212
42010002000320133
514014032323130
61003445415035
7105615133004
oct20402007037
95641122855
102215120415
11a37417832
12519a0a47b
13293bc6a51
141702958ab
15ce706e95
hex84080e1f

2215120415 has 8 divisors (see below), whose sum is σ = 2798046960. Its totient is φ = 1678828032.

The previous prime is 2215120357. The next prime is 2215120429. The reversal of 2215120415 is 5140215122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2215120415 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11658434 + ... + 11658623.

It is an arithmetic number, because the mean of its divisors is an integer number (349755870).

Almost surely, 22215120415 is an apocalyptic number.

2215120415 is a deficient number, since it is larger than the sum of its proper divisors (582926545).

2215120415 is a wasteful number, since it uses less digits than its factorization.

2215120415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23317081.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2215120415 is about 47065.0657600730. The cubic root of 2215120415 is about 1303.5642651232.

Adding to 2215120415 its reverse (5140215122), we get a palindrome (7355335537).

The spelling of 2215120415 in words is "two billion, two hundred fifteen million, one hundred twenty thousand, four hundred fifteen".

Divisors: 1 5 19 95 23317057 116585285 443024083 2215120415