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13325237 = 94714071
BaseRepresentation
bin110010110101…
…001110110101
3221001222210022
4302311032311
511402401422
61153334525
7221156042
oct62651665
927058708
1013325237
1175814a2
124567445
1329b7273
141aac1c9
151283342
hexcb53b5

13325237 has 4 divisors (see below), whose sum is σ = 13340256. Its totient is φ = 13310220.

The previous prime is 13325231. The next prime is 13325243. The reversal of 13325237 is 73252331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (13325231) and next prime (13325243).

It is a cyclic number.

It is not a de Polignac number, because 13325237 - 26 = 13325173 is a prime.

It is a super-2 number, since 2×133252372 = 355123882212338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13325231) 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, 6089 + ... + 7982.

It is an arithmetic number, because the mean of its divisors is an integer number (3335064).

Almost surely, 213325237 is an apocalyptic number.

It is an amenable number.

13325237 is a deficient number, since it is larger than the sum of its proper divisors (15019).

13325237 is an equidigital number, since it uses as much as digits as its factorization.

13325237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15018.

The product of its digits is 3780, while the sum is 26.

The square root of 13325237 is about 3650.3749122522. The cubic root of 13325237 is about 237.0782142582.

Adding to 13325237 its reverse (73252331), we get a palindrome (86577568).

The spelling of 13325237 in words is "thirteen million, three hundred twenty-five thousand, two hundred thirty-seven".

Divisors: 1 947 14071 13325237