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7488013 = 13576001
BaseRepresentation
bin11100100100001000001101
3112002102121211
4130210020031
53404104023
6424254421
7120434641
oct34441015
915072554
107488013
114254945
122611411
1317223a0
14dccc21
159cda0d
hex72420d

7488013 has 4 divisors (see below), whose sum is σ = 8064028. Its totient is φ = 6912000.

The previous prime is 7487989. The next prime is 7488017. The reversal of 7488013 is 3108847.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3108847 = 7444121.

It can be written as a sum of positive squares in 2 ways, for example, as 1790244 + 5697769 = 1338^2 + 2387^2 .

It is a cyclic number.

It is not a de Polignac number, because 7488013 - 213 = 7479821 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7488017) 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, 287988 + ... + 288013.

It is an arithmetic number, because the mean of its divisors is an integer number (2016007).

Almost surely, 27488013 is an apocalyptic number.

It is an amenable number.

7488013 is a deficient number, since it is larger than the sum of its proper divisors (576015).

7488013 is a wasteful number, since it uses less digits than its factorization.

7488013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576014.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 7488013 is about 2736.4233956024. The cubic root of 7488013 is about 195.6390430773.

The spelling of 7488013 in words is "seven million, four hundred eighty-eight thousand, thirteen".

Divisors: 1 13 576001 7488013