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2081349351 = 3425695671
BaseRepresentation
bin111110000001110…
…1101111011100111
312101001102111120000
41330003231323213
513230311134401
6542310312343
7102402114624
oct17403557347
95331374500
102081349351
1197895a634
124a10586b3
1327228a983
1415a5d334b
15c2ad1186
hex7c0edee7

2081349351 has 10 divisors (see below), whose sum is σ = 3109176312. Its totient is φ = 1387566180.

The previous prime is 2081349349. The next prime is 2081349359. The reversal of 2081349351 is 1539431802.

It is not a de Polignac number, because 2081349351 - 21 = 2081349349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081349359) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12847755 + ... + 12847916.

Almost surely, 22081349351 is an apocalyptic number.

2081349351 is a deficient number, since it is larger than the sum of its proper divisors (1027826961).

2081349351 is an equidigital number, since it uses as much as digits as its factorization.

2081349351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25695683 (or 25695674 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2081349351 is about 45621.8078444947. The cubic root of 2081349351 is about 1276.7768333906.

The spelling of 2081349351 in words is "two billion, eighty-one million, three hundred forty-nine thousand, three hundred fifty-one".

Divisors: 1 3 9 27 81 25695671 77087013 231261039 693783117 2081349351