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13738331 = 26352237
BaseRepresentation
bin110100011010…
…000101011011
3221211222110002
4310122011123
512004111311
61210243215
7224526305
oct64320533
927758402
1013738331
1178338a2
12472650b
132b002b9
141b78975
15131593b
hexd1a15b

13738331 has 4 divisors (see below), whose sum is σ = 13790832. Its totient is φ = 13685832.

The previous prime is 13738303. The next prime is 13738367. The reversal of 13738331 is 13383731.

13738331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13383731 = 89150379.

It is a cyclic number.

It is not a de Polignac number, because 13738331 - 210 = 13737307 is a prime.

It is a super-2 number, since 2×137383312 = 377483477331122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13738294 and 13738303.

It is not an unprimeable number, because it can be changed into a prime (13738391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25856 + ... + 26381.

It is an arithmetic number, because the mean of its divisors is an integer number (3447708).

Almost surely, 213738331 is an apocalyptic number.

13738331 is a deficient number, since it is larger than the sum of its proper divisors (52501).

13738331 is an equidigital number, since it uses as much as digits as its factorization.

13738331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52500.

The product of its digits is 4536, while the sum is 29.

The square root of 13738331 is about 3706.5254619387. The cubic root of 13738331 is about 239.5032026687.

The spelling of 13738331 in words is "thirteen million, seven hundred thirty-eight thousand, three hundred thirty-one".

Divisors: 1 263 52237 13738331