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2102450143 = 17312152891
BaseRepresentation
bin111110101010000…
…1101011111011111
312102112010112101211
41331110031133133
513301211401033
6544342445251
7103046350153
oct17524153737
95375115354
102102450143
11989861a02
124a8133827
13276768151
1415d327063
15c489d2cd
hex7d50d7df

2102450143 has 4 divisors (see below), whose sum is σ = 2114603208. Its totient is φ = 2090297080.

The previous prime is 2102450137. The next prime is 2102450167. The reversal of 2102450143 is 3410542012.

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 2102450143 - 213 = 2102441951 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 (2102450243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6076273 + ... + 6076618.

It is an arithmetic number, because the mean of its divisors is an integer number (528650802).

Almost surely, 22102450143 is an apocalyptic number.

2102450143 is a deficient number, since it is larger than the sum of its proper divisors (12153065).

2102450143 is a wasteful number, since it uses less digits than its factorization.

2102450143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12153064.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2102450143 is about 45852.4824082623. The cubic root of 2102450143 is about 1281.0770034982.

Adding to 2102450143 its reverse (3410542012), we get a palindrome (5512992155).

The spelling of 2102450143 in words is "two billion, one hundred two million, four hundred fifty thousand, one hundred forty-three".

Divisors: 1 173 12152891 2102450143