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12470506445 = 52494101289
BaseRepresentation
bin10111001110100110…
…01101001111001101
31012012002110100212002
423213103031033031
5201014422201240
65421234122045
7621013361435
oct134723151715
935162410762
1012470506445
11531a304081
122500420325
1312397912c7
148642d72c5
154cec0ed15
hex2e74cd3cd

12470506445 has 4 divisors (see below), whose sum is σ = 14964607740. Its totient is φ = 9976405152.

The previous prime is 12470506441. The next prime is 12470506463. The reversal of 12470506445 is 54460507421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54460507421 = 67003812807.

It can be written as a sum of positive squares in 2 ways, for example, as 5418873769 + 7051632676 = 73613^2 + 83974^2 .

It is a cyclic number.

It is not a de Polignac number, because 12470506445 - 22 = 12470506441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12470506399 and 12470506408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12470506441) 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, 1247050640 + ... + 1247050649.

It is an arithmetic number, because the mean of its divisors is an integer number (3741151935).

Almost surely, 212470506445 is an apocalyptic number.

It is an amenable number.

12470506445 is a deficient number, since it is larger than the sum of its proper divisors (2494101295).

12470506445 is an equidigital number, since it uses as much as digits as its factorization.

12470506445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494101294.

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 12470506445 in words is "twelve billion, four hundred seventy million, five hundred six thousand, four hundred forty-five".

Divisors: 1 5 2494101289 12470506445