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2127331129 = 721125992
BaseRepresentation
bin111111011001100…
…0111111100111001
312111020221121200211
41332303013330321
513324044044004
6551032031121
7103501005400
oct17663077471
95436847624
102127331129
119a1906400
124b45324a1
1327b96a121
14162762637
15c6b65504
hex7ecc7f39

2127331129 has 27 divisors (see below), whose sum is σ = 2724618981. Its totient is φ = 1654893240.

The previous prime is 2127331127. The next prime is 2127331147. The reversal of 2127331129 is 9211337212.

The square root of 2127331129 is 46123.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2127331129 - 21 = 2127331127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2127331129.

It is not an unprimeable number, because it can be changed into a prime (2127331127) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3551172 + ... + 3551770.

Almost surely, 22127331129 is an apocalyptic number.

2127331129 is the 46123-rd square number.

2127331129 is the 23062-nd centered octagonal number.

It is an amenable number.

2127331129 is a deficient number, since it is larger than the sum of its proper divisors (597287852).

2127331129 is an frugal number, since it uses more digits than its factorization.

2127331129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 617 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The cubic root of 2127331129 is about 1286.1107403183.

The spelling of 2127331129 in words is "two billion, one hundred twenty-seven million, three hundred thirty-one thousand, one hundred twenty-nine".

Divisors: 1 7 11 49 77 121 539 599 847 4193 5929 6589 29351 46123 72479 322861 358801 507353 2511607 3551471 3946811 17581249 27627677 43414921 193393739 303904447 2127331129