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12472697 = 29430093
BaseRepresentation
bin101111100101…
…000101111001
3212110200022202
4233211011321
511143111242
61123155545
7211005356
oct57450571
925420282
1012472697
117049a16
124215bb5
1327791c3
14192962d
151165932
hexbe5179

12472697 has 4 divisors (see below), whose sum is σ = 12902820. Its totient is φ = 12042576.

The previous prime is 12472673. The next prime is 12472699. The reversal of 12472697 is 79627421.

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 3297856 + 9174841 = 1816^2 + 3029^2 .

It is a cyclic number.

It is not a de Polignac number, because 12472697 - 220 = 11424121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12472697.

It is not an unprimeable number, because it can be changed into a prime (12472699) 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, 215018 + ... + 215075.

It is an arithmetic number, because the mean of its divisors is an integer number (3225705).

Almost surely, 212472697 is an apocalyptic number.

It is an amenable number.

12472697 is a deficient number, since it is larger than the sum of its proper divisors (430123).

12472697 is an equidigital number, since it uses as much as digits as its factorization.

12472697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430122.

The product of its digits is 42336, while the sum is 38.

The square root of 12472697 is about 3531.6705678758. The cubic root of 12472697 is about 231.9103461058.

The spelling of 12472697 in words is "twelve million, four hundred seventy-two thousand, six hundred ninety-seven".

Divisors: 1 29 430093 12472697