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2876121620 = 225143806081
BaseRepresentation
bin1010101101101110…
…0010001000010100
321102102221010010222
42223123202020110
521342241342440
61153221133512
7131162426141
oct25333421024
97372833128
102876121620
11124654a819
1268325a298
1336ab30218
141d3d9b3c8
1511c7742b5
hexab6e2214

2876121620 has 12 divisors (see below), whose sum is σ = 6039855444. Its totient is φ = 1150448640.

The previous prime is 2876121593. The next prime is 2876121623. The reversal of 2876121620 is 261216782.

It can be written as a sum of positive squares in 2 ways, for example, as 1211318416 + 1664803204 = 34804^2 + 40802^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2876121623) 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, 71903021 + ... + 71903060.

It is an arithmetic number, because the mean of its divisors is an integer number (503321287).

Almost surely, 22876121620 is an apocalyptic number.

2876121620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2876121620 is an abundant number, since it is smaller than the sum of its proper divisors (3163733824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2876121620 is a wasteful number, since it uses less digits than its factorization.

2876121620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143806090 (or 143806088 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 2876121620 is about 53629.4846143425. The cubic root of 2876121620 is about 1422.1183782370.

The spelling of 2876121620 in words is "two billion, eight hundred seventy-six million, one hundred twenty-one thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 143806081 287612162 575224324 719030405 1438060810 2876121620