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2151513143 = 13222357089
BaseRepresentation
bin1000000000111101…
…0111110000110111
312112221110012011222
42000033113300313
513401241410033
6553254220555
7104213363033
oct20017276067
95487405158
102151513143
11a0452273a
1250065475b
13283985c00
14165a591c3
15c8d40598
hex803d7c37

2151513143 has 12 divisors (see below), whose sum is σ = 2340233280. Its totient is φ = 1977071616.

The previous prime is 2151513113. The next prime is 2151513167. The reversal of 2151513143 is 3413151512.

2151513143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2151513143 - 214 = 2151496759 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 (2151513113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9143 + ... + 66231.

It is an arithmetic number, because the mean of its divisors is an integer number (195019440).

Almost surely, 22151513143 is an apocalyptic number.

2151513143 is a deficient number, since it is larger than the sum of its proper divisors (188720137).

2151513143 is a wasteful number, since it uses less digits than its factorization.

2151513143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57338 (or 57325 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The square root of 2151513143 is about 46384.4062482210. The cubic root of 2151513143 is about 1290.9655937789.

Adding to 2151513143 its reverse (3413151512), we get a palindrome (5564664655).

The spelling of 2151513143 in words is "two billion, one hundred fifty-one million, five hundred thirteen thousand, one hundred forty-three".

Divisors: 1 13 169 223 2899 37687 57089 742157 9648041 12730847 165501011 2151513143