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13812263997 = 3719151229253
BaseRepresentation
bin11001101110100011…
…00110110000111101
31022122121012201012020
430313101212300331
5211241414421442
610202324430353
7666165210150
oct146721466075
938577181166
1013812263997
115948732414
1228158483b9
1313c1759a9c
149505a7c97
1555c8ec9ec
hex337466c3d

13812263997 has 32 divisors (see below), whose sum is σ = 22301829120. Its totient is φ = 7427764800.

The previous prime is 13812263987. The next prime is 13812264019. The reversal of 13812263997 is 79936221831.

It is not a de Polignac number, because 13812263997 - 28 = 13812263741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13812263917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54378 + ... + 174875.

It is an arithmetic number, because the mean of its divisors is an integer number (696932160).

Almost surely, 213812263997 is an apocalyptic number.

It is an amenable number.

13812263997 is a deficient number, since it is larger than the sum of its proper divisors (8489565123).

13812263997 is a wasteful number, since it uses less digits than its factorization.

13812263997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229433.

The product of its digits is 979776, while the sum is 51.

The spelling of 13812263997 in words is "thirteen billion, eight hundred twelve million, two hundred sixty-three thousand, nine hundred ninety-seven".

Divisors: 1 3 7 19 21 57 133 151 399 453 1057 2869 3171 8607 20083 60249 229253 687759 1604771 4355807 4814313 13067421 30490649 34617203 91471947 103851609 242320421 657726857 726961263 1973180571 4604087999 13812263997