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2112530015 = 54315165071
BaseRepresentation
bin111110111101010…
…1010011001011111
312110020002122101102
41331322222121133
513311301430030
6545342503315
7103231131431
oct17572523137
95406078342
102112530015
11994517082
124ab594b3b
1327888717b
141607cc651
15c56dec45
hex7deaa65f

2112530015 has 16 divisors (see below), whose sum is σ = 2611209216. Its totient is φ = 1639764000.

The previous prime is 2112529957. The next prime is 2112530023. The reversal of 2112530015 is 5100352112.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-2112530015 is a prime.

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, 71 + ... + 65000.

It is an arithmetic number, because the mean of its divisors is an integer number (163200576).

Almost surely, 22112530015 is an apocalyptic number.

2112530015 is a deficient number, since it is larger than the sum of its proper divisors (498679201).

2112530015 is a wasteful number, since it uses less digits than its factorization.

2112530015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65270.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2112530015 is about 45962.2672961202. The cubic root of 2112530015 is about 1283.1210488618.

Adding to 2112530015 its reverse (5100352112), we get a palindrome (7212882127).

The spelling of 2112530015 in words is "two billion, one hundred twelve million, five hundred thirty thousand, fifteen".

Divisors: 1 5 43 151 215 755 6493 32465 65071 325355 2798053 9825721 13990265 49128605 422506003 2112530015