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12144120303 = 37578291443
BaseRepresentation
bin10110100111101100…
…01001000111101111
31011100100022020020110
423103312021013233
5144332343322203
65325014351103
7606641214360
oct132366110757
934310266213
1012144120303
115172048367
12242b05b493
1311b6c85403
14832c15b67
154b123cd03
hex2d3d891ef

12144120303 has 8 divisors (see below), whose sum is σ = 18505326208. Its totient is φ = 6939497304.

The previous prime is 12144120299. The next prime is 12144120347. The reversal of 12144120303 is 30302144121.

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

It is not a de Polignac number, because 12144120303 - 22 = 12144120299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 578291443 = 12144120303 / (1 + 2 + 1 + 4 + 4 + 1 + 2 + 0 + 3 + 0 + 3).

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 12144120303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144120383) 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, 289145701 + ... + 289145742.

It is an arithmetic number, because the mean of its divisors is an integer number (2313165776).

Almost surely, 212144120303 is an apocalyptic number.

12144120303 is a deficient number, since it is larger than the sum of its proper divisors (6361205905).

12144120303 is an equidigital number, since it uses as much as digits as its factorization.

12144120303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578291453.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12144120303 its reverse (30302144121), we get a palindrome (42446264424).

The spelling of 12144120303 in words is "twelve billion, one hundred forty-four million, one hundred twenty thousand, three hundred three".

Divisors: 1 3 7 21 578291443 1734874329 4048040101 12144120303