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2082805917 = 32330185593
BaseRepresentation
bin111110000100101…
…0001100010011101
312101011011111120220
41330021101202131
513231144242132
6542401431553
7102420362313
oct17411214235
95334144526
102082805917
11979764a05
124a163b5b9
1327267a94a
1415a8920b3
15c2cbca2c
hex7c25189d

2082805917 has 8 divisors (see below), whose sum is σ = 2897817024. Its totient is φ = 1328166048.

The previous prime is 2082805909. The next prime is 2082805939. The reversal of 2082805917 is 7195082802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2082805917 - 23 = 2082805909 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2082805117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15092728 + ... + 15092865.

It is an arithmetic number, because the mean of its divisors is an integer number (362227128).

Almost surely, 22082805917 is an apocalyptic number.

It is an amenable number.

2082805917 is a deficient number, since it is larger than the sum of its proper divisors (815011107).

2082805917 is a wasteful number, since it uses less digits than its factorization.

2082805917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30185619.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 2082805917 is about 45637.7685365970. The cubic root of 2082805917 is about 1277.0746011301.

The spelling of 2082805917 in words is "two billion, eighty-two million, eight hundred five thousand, nine hundred seventeen".

Divisors: 1 3 23 69 30185593 90556779 694268639 2082805917