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12513482 = 26256741
BaseRepresentation
bin101111101111…
…000011001010
3212112202021022
4233233003022
511200412412
61124112442
7211235312
oct57570312
925482238
1012513482
117077623
124235722
132791937
14193a442
151172a72
hexbef0ca

12513482 has 4 divisors (see below), whose sum is σ = 18770226. Its totient is φ = 6256740.

The previous prime is 12513481. The next prime is 12513499. The reversal of 12513482 is 28431521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28431521 = 238111941.

It can be written as a sum of positive squares in only one way, i.e., 9853321 + 2660161 = 3139^2 + 1631^2 .

It is not an unprimeable number, because it can be changed into a prime (12513481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3128369 + ... + 3128372.

Almost surely, 212513482 is an apocalyptic number.

12513482 is a deficient number, since it is larger than the sum of its proper divisors (6256744).

12513482 is an equidigital number, since it uses as much as digits as its factorization.

12513482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6256743.

The product of its digits is 1920, while the sum is 26.

The square root of 12513482 is about 3537.4400348274. The cubic root of 12513482 is about 232.1628489021.

The spelling of 12513482 in words is "twelve million, five hundred thirteen thousand, four hundred eighty-two".

Divisors: 1 2 6256741 12513482