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13415530 = 251341553
BaseRepresentation
bin110011001011…
…010001101010
3221020120122111
4303023101222
511413244110
61155312534
7222013222
oct63132152
927216574
1013415530
117633317
1245ab74a
132a193ab
141ad3082
15129ee8a
hexccb46a

13415530 has 8 divisors (see below), whose sum is σ = 24147972. Its totient is φ = 5366208.

The previous prime is 13415491. The next prime is 13415537. The reversal of 13415530 is 3551431.

It is a happy number.

13415530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13300609 + 114921 = 3647^2 + 339^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13415537) 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, 670767 + ... + 670786.

Almost surely, 213415530 is an apocalyptic number.

13415530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13415530 is a deficient number, since it is larger than the sum of its proper divisors (10732442).

13415530 is a wasteful number, since it uses less digits than its factorization.

13415530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341560.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13415530 is about 3662.7216656470. The cubic root of 13415530 is about 237.6124970281.

Adding to 13415530 its reverse (3551431), we get a palindrome (16966961).

The spelling of 13415530 in words is "thirteen million, four hundred fifteen thousand, five hundred thirty".

Divisors: 1 2 5 10 1341553 2683106 6707765 13415530