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13437401 = 37363173
BaseRepresentation
bin110011010000…
…100111011001
3221021200122112
4303100213121
511414444101
61200002105
7222134045
oct63204731
927250575
1013437401
11764879a
124600335
132a26333
141adb025
1512a66bb
hexcd09d9

13437401 has 4 divisors (see below), whose sum is σ = 13800612. Its totient is φ = 13074192.

The previous prime is 13437397. The next prime is 13437407. The reversal of 13437401 is 10473431.

13437401 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: 10473431 = 89117679.

It can be written as a sum of positive squares in 2 ways, for example, as 6255001 + 7182400 = 2501^2 + 2680^2 .

It is a cyclic number.

It is not a de Polignac number, because 13437401 - 22 = 13437397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13437407) 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, 181550 + ... + 181623.

It is an arithmetic number, because the mean of its divisors is an integer number (3450153).

Almost surely, 213437401 is an apocalyptic number.

It is an amenable number.

13437401 is a deficient number, since it is larger than the sum of its proper divisors (363211).

13437401 is an equidigital number, since it uses as much as digits as its factorization.

13437401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363210.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 13437401 is about 3665.7060711410. The cubic root of 13437401 is about 237.7415514746.

The spelling of 13437401 in words is "thirteen million, four hundred thirty-seven thousand, four hundred one".

Divisors: 1 37 363173 13437401