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2680621337 = 6299425563
BaseRepresentation
bin1001111111000111…
…0000100100011001
320220211001200011202
42133301300210121
520442214340322
61121555003545
7123266622362
oct23761604431
96824050152
102680621337
111156160539
126298995b5
13339490094
141b602ab69
1510a508292
hex9fc70919

2680621337 has 4 divisors (see below), whose sum is σ = 2681053200. Its totient is φ = 2680189476.

The previous prime is 2680621331. The next prime is 2680621379. The reversal of 2680621337 is 7331260862.

2680621337 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7331260862 = 23665630431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2680621337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2680621337.

It is not an unprimeable number, because it can be changed into a prime (2680621331) 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, 206483 + ... + 219080.

It is an arithmetic number, because the mean of its divisors is an integer number (670263300).

Almost surely, 22680621337 is an apocalyptic number.

It is an amenable number.

2680621337 is a deficient number, since it is larger than the sum of its proper divisors (431863).

2680621337 is an equidigital number, since it uses as much as digits as its factorization.

2680621337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431862.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 2680621337 is about 51774.7171600193. The cubic root of 2680621337 is about 1389.1372485455.

The spelling of 2680621337 in words is "two billion, six hundred eighty million, six hundred twenty-one thousand, three hundred thirty-seven".

Divisors: 1 6299 425563 2680621337