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12472349 = 29430081
BaseRepresentation
bin101111100101…
…000000011101
3212110122211212
4233211000131
511143103344
61123154205
7211004351
oct57450035
925418755
1012472349
11704972a
124215965
132778cb6
141929461
15116579e
hexbe501d

12472349 has 4 divisors (see below), whose sum is σ = 12902460. Its totient is φ = 12042240.

The previous prime is 12472337. The next prime is 12472363. The reversal of 12472349 is 94327421.

12472349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6916900 + 5555449 = 2630^2 + 2357^2 .

It is a cyclic number.

It is not a de Polignac number, because 12472349 - 24 = 12472333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12472319) 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, 215012 + ... + 215069.

It is an arithmetic number, because the mean of its divisors is an integer number (3225615).

Almost surely, 212472349 is an apocalyptic number.

It is an amenable number.

12472349 is a deficient number, since it is larger than the sum of its proper divisors (430111).

12472349 is an equidigital number, since it uses as much as digits as its factorization.

12472349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430110.

The product of its digits is 12096, while the sum is 32.

The square root of 12472349 is about 3531.6212990636. The cubic root of 12472349 is about 231.9081892467.

It can be divided in two parts, 12472 and 349, that added together give a palindrome (12821).

The spelling of 12472349 in words is "twelve million, four hundred seventy-two thousand, three hundred forty-nine".

Divisors: 1 29 430081 12472349