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2115300143 = 11192300013
BaseRepresentation
bin111111000010100…
…1110101100101111
312110102022101021202
41332011032230233
513313004101033
6545522120115
7103263516545
oct17605165457
95412271252
102115300143
11996039340
124b04b003b
13279316cb8
14160d0dd95
15c5a8a8e8
hex7e14eb2f

2115300143 has 4 divisors (see below), whose sum is σ = 2307600168. Its totient is φ = 1923000120.

The previous prime is 2115300137. The next prime is 2115300169. The reversal of 2115300143 is 3410035112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2115300143 - 210 = 2115299119 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 (2115300643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96149996 + ... + 96150017.

It is an arithmetic number, because the mean of its divisors is an integer number (576900042).

Almost surely, 22115300143 is an apocalyptic number.

2115300143 is a deficient number, since it is larger than the sum of its proper divisors (192300025).

2115300143 is a wasteful number, since it uses less digits than its factorization.

2115300143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192300024.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2115300143 is about 45992.3922295851. The cubic root of 2115300143 is about 1283.6816495059.

Adding to 2115300143 its reverse (3410035112), we get a palindrome (5525335255).

The spelling of 2115300143 in words is "two billion, one hundred fifteen million, three hundred thousand, one hundred forty-three".

Divisors: 1 11 192300013 2115300143