Search a number
-
+
12147247102 = 247129226033
BaseRepresentation
bin10110101000000100…
…00100011111111110
31011100120012002101211
423110002010133332
5144334143401402
65325205355034
7610006616404
oct132402043776
934316162354
1012147247102
1151738935a1
122430108a7a
1311b780b6a3
148333cb474
154b16594d7
hex2d40847fe

12147247102 has 8 divisors (see below), whose sum is σ = 18608548896. Its totient is φ = 5944397472.

The previous prime is 12147247097. The next prime is 12147247109. The reversal of 12147247102 is 20174274121.

12147247102 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 a super-2 number, since 2×121472471022 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147247109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64612923 + ... + 64613110.

It is an arithmetic number, because the mean of its divisors is an integer number (2326068612).

Almost surely, 212147247102 is an apocalyptic number.

12147247102 is a deficient number, since it is larger than the sum of its proper divisors (6461301794).

12147247102 is a wasteful number, since it uses less digits than its factorization.

12147247102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129226082.

The product of its (nonzero) digits is 6272, while the sum is 31.

The spelling of 12147247102 in words is "twelve billion, one hundred forty-seven million, two hundred forty-seven thousand, one hundred two".

Divisors: 1 2 47 94 129226033 258452066 6073623551 12147247102