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4520013 = 310911381
BaseRepresentation
bin10001001111100001001101
322111122021220
4101033201031
52124120023
6240513553
753263611
oct21174115
98448256
104520013
112607a53
12161b8b9
13c23484
14859341
155e43e3
hex44f84d

4520013 has 8 divisors (see below), whose sum is σ = 6036576. Its totient is φ = 3008400.

The previous prime is 4520003. The next prime is 4520023. The reversal of 4520013 is 3100254.

It is an interprime number because it is at equal distance from previous prime (4520003) and next prime (4520023).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4520013 - 24 = 4519997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4519974 and 4520001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4520003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2583 + ... + 3963.

It is an arithmetic number, because the mean of its divisors is an integer number (754572).

Almost surely, 24520013 is an apocalyptic number.

It is an amenable number.

4520013 is a deficient number, since it is larger than the sum of its proper divisors (1516563).

4520013 is a wasteful number, since it uses less digits than its factorization.

4520013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 4520013 is about 2126.0322198876. The cubic root of 4520013 is about 165.3407467012.

Adding to 4520013 its reverse (3100254), we get a palindrome (7620267).

The spelling of 4520013 in words is "four million, five hundred twenty thousand, thirteen".

Divisors: 1 3 1091 1381 3273 4143 1506671 4520013