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13312033 = 71901719
BaseRepresentation
bin110010110010…
…000000100001
3221001022200021
4302302000201
511401441113
61153153441
7221102410
oct62620041
927038607
1013312033
117572589
12455b881
1329b1257
141aa7477
15127e48d
hexcb2021

13312033 has 4 divisors (see below), whose sum is σ = 15213760. Its totient is φ = 11410308.

The previous prime is 13312031. The next prime is 13312043. The reversal of 13312033 is 33021331.

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 not a de Polignac number, because 13312033 - 21 = 13312031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13311998 and 13312016.

It is not an unprimeable number, because it can be changed into a prime (13312031) 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, 950853 + ... + 950866.

It is an arithmetic number, because the mean of its divisors is an integer number (3803440).

Almost surely, 213312033 is an apocalyptic number.

It is an amenable number.

13312033 is a deficient number, since it is larger than the sum of its proper divisors (1901727).

13312033 is an equidigital number, since it uses as much as digits as its factorization.

13312033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901726.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 13312033 is about 3648.5658826449. The cubic root of 13312033 is about 236.9998813105. Note that the first 3 decimals are identical.

Adding to 13312033 its reverse (33021331), we get a palindrome (46333364).

It can be divided in two parts, 1331 and 2033, that added together give a square (3364 = 582).

The spelling of 13312033 in words is "thirteen million, three hundred twelve thousand, thirty-three".

Divisors: 1 7 1901719 13312033