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2152849321 = 71916186837
BaseRepresentation
bin1000000001010001…
…1101111110101001
312120000222002002001
42000110131332221
513402112134241
6553343011001
7104230626430
oct20024357651
95500862061
102152849321
11a05255617
12500b99a61
1328403314c
14165cc6117
15c9006431
hex8051dfa9

2152849321 has 8 divisors (see below), whose sum is σ = 2589894080. Its totient is φ = 1748178288.

The previous prime is 2152849319. The next prime is 2152849333. The reversal of 2152849321 is 1239482512.

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

It is a cyclic number.

It is not a de Polignac number, because 2152849321 - 21 = 2152849319 is a prime.

It is a super-2 number, since 2×21528493212 = 9269520397860322082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2152849301) 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, 8093286 + ... + 8093551.

It is an arithmetic number, because the mean of its divisors is an integer number (323736760).

Almost surely, 22152849321 is an apocalyptic number.

It is an amenable number.

2152849321 is a deficient number, since it is larger than the sum of its proper divisors (437044759).

2152849321 is a wasteful number, since it uses less digits than its factorization.

2152849321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16186863.

The product of its digits is 34560, while the sum is 37.

The square root of 2152849321 is about 46398.8073230336. The cubic root of 2152849321 is about 1291.2327860205.

The spelling of 2152849321 in words is "two billion, one hundred fifty-two million, eight hundred forty-nine thousand, three hundred twenty-one".

Divisors: 1 7 19 133 16186837 113307859 307549903 2152849321