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12072613 = 72959471
BaseRepresentation
bin101110000011…
…011010100101
3211201100111211
4232003122211
511042310423
61110431421
7204421060
oct56033245
924640454
1012072613
1168a6373
124062571
132669077
1418638d7
1510d710d
hexb836a5

12072613 has 8 divisors (see below), whose sum is σ = 14273280. Its totient is φ = 9990960.

The previous prime is 12072611. The next prime is 12072617. The reversal of 12072613 is 31627021.

12072613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12072613 - 21 = 12072611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12072611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29533 + ... + 29938.

It is an arithmetic number, because the mean of its divisors is an integer number (1784160).

Almost surely, 212072613 is an apocalyptic number.

It is an amenable number.

12072613 is a deficient number, since it is larger than the sum of its proper divisors (2200667).

12072613 is an equidigital number, since it uses as much as digits as its factorization.

12072613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59507.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 12072613 is about 3474.5665916773. The cubic root of 12072613 is about 229.4037042829.

Adding to 12072613 its reverse (31627021), we get a palindrome (43699634).

The spelling of 12072613 in words is "twelve million, seventy-two thousand, six hundred thirteen".

Divisors: 1 7 29 203 59471 416297 1724659 12072613