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13182121 = 73359503
BaseRepresentation
bin110010010010…
…010010101001
3220210201110201
4302102102221
511333311441
61150312201
7220021561
oct62222251
926721421
1013182121
117493a17
1244b8661
132967094
141a71da1
151255c31
hexc924a9

13182121 has 8 divisors (see below), whose sum is σ = 13426560. Its totient is φ = 12939552.

The previous prime is 13182109. The next prime is 13182139. The reversal of 13182121 is 12128131.

13182121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 13182121 - 223 = 4793513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13180121) 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, 25956 + ... + 26458.

It is an arithmetic number, because the mean of its divisors is an integer number (1678320).

Almost surely, 213182121 is an apocalyptic number.

It is an amenable number.

13182121 is a deficient number, since it is larger than the sum of its proper divisors (244439).

13182121 is an equidigital number, since it uses as much as digits as its factorization.

13182121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935.

The product of its digits is 96, while the sum is 19.

The square root of 13182121 is about 3630.7190747839. The cubic root of 13182121 is about 236.2263998523.

The spelling of 13182121 in words is "thirteen million, one hundred eighty-two thousand, one hundred twenty-one".

Divisors: 1 73 359 503 26207 36719 180577 13182121