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2721825013 = 12437218849
BaseRepresentation
bin1010001000111011…
…1100000011110101
321000200121000222211
42202032330003311
521033241400023
61130030053421
7124310062615
oct24216740365
97020530884
102721825013
111177443466
1263b64a271
13344b8875b
141bb6b4a45
1510de46a0d
hexa23bc0f5

2721825013 has 4 divisors (see below), whose sum is σ = 2722056300. Its totient is φ = 2721593728.

The previous prime is 2721824983. The next prime is 2721825077. The reversal of 2721825013 is 3105281272.

2721825013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1036968804 + 1684856209 = 32202^2 + 41047^2 .

It is a cyclic number.

It is not a de Polignac number, because 2721825013 - 213 = 2721816821 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 (2721828013) 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, 96988 + ... + 121861.

It is an arithmetic number, because the mean of its divisors is an integer number (680514075).

Almost surely, 22721825013 is an apocalyptic number.

It is an amenable number.

2721825013 is a deficient number, since it is larger than the sum of its proper divisors (231287).

2721825013 is a wasteful number, since it uses less digits than its factorization.

2721825013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231286.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 2721825013 is about 52171.1128211772. The cubic root of 2721825013 is about 1396.2185390127.

The spelling of 2721825013 in words is "two billion, seven hundred twenty-one million, eight hundred twenty-five thousand, thirteen".

Divisors: 1 12437 218849 2721825013