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13442841 = 34165961
BaseRepresentation
bin110011010001…
…111100011001
3221021222010000
4303101330121
511420132331
61200043213
7222155646
oct63217431
927258100
1013442841
117651895
124603509
132a28959
141adcdcd
1512a80e6
hexcd1f19

13442841 has 10 divisors (see below), whose sum is σ = 20081402. Its totient is φ = 8961840.

The previous prime is 13442831. The next prime is 13442857. The reversal of 13442841 is 14824431.

It can be written as a sum of positive squares in only one way, i.e., 13286025 + 156816 = 3645^2 + 396^2 .

It is not a de Polignac number, because 13442841 - 219 = 12918553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13442831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 82900 + ... + 83061.

Almost surely, 213442841 is an apocalyptic number.

It is an amenable number.

13442841 is a deficient number, since it is larger than the sum of its proper divisors (6638561).

13442841 is an equidigital number, since it uses as much as digits as its factorization.

13442841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165973 (or 165964 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 13442841 is about 3666.4480086318. The cubic root of 13442841 is about 237.7736295912.

The spelling of 13442841 in words is "thirteen million, four hundred forty-two thousand, eight hundred forty-one".

Divisors: 1 3 9 27 81 165961 497883 1493649 4480947 13442841