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13273131 = 325117627
BaseRepresentation
bin110010101000…
…100000101011
3220222100022110
4302220200223
511344220011
61152253403
7220551114
oct62504053
926870273
1013273131
117546333
124541263
132999631
141a9720b
151272ba6
hexca882b

13273131 has 8 divisors (see below), whose sum is σ = 17769024. Its totient is φ = 8813000.

The previous prime is 13273109. The next prime is 13273133. The reversal of 13273131 is 13137231.

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 13273131 - 26 = 13273067 is a prime.

It is a super-2 number, since 2×132731312 = 352352013086322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13273098 and 13273107.

It is not an unprimeable number, because it can be changed into a prime (13273133) 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, 8061 + ... + 9566.

It is an arithmetic number, because the mean of its divisors is an integer number (2221128).

Almost surely, 213273131 is an apocalyptic number.

13273131 is a deficient number, since it is larger than the sum of its proper divisors (4495893).

13273131 is a wasteful number, since it uses less digits than its factorization.

13273131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17881.

The product of its digits is 378, while the sum is 21.

The square root of 13273131 is about 3643.2308463780. The cubic root of 13273131 is about 236.7687930155.

The spelling of 13273131 in words is "thirteen million, two hundred seventy-three thousand, one hundred thirty-one".

Divisors: 1 3 251 753 17627 52881 4424377 13273131