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12151361406 = 236142177873
BaseRepresentation
bin10110101000100011…
…10000111101111110
31011100211221010011110
423110101300331332
5144341222031111
65325433502450
7610056603432
oct132421607576
934324833143
1012151361406
115176143748
122431571a26
1311b861c2a2
14833b7c9c2
154b1bbd5a6
hex2d4470f7e

12151361406 has 32 divisors (see below), whose sum is σ = 24710123808. Its totient is φ = 3982602240.

The previous prime is 12151361377. The next prime is 12151361407. The reversal of 12151361406 is 60416315121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12151361407) 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 15 ways as a sum of consecutive naturals, for example, 1539486 + ... + 1547358.

It is an arithmetic number, because the mean of its divisors is an integer number (772191369).

Almost surely, 212151361406 is an apocalyptic number.

12151361406 is an abundant number, since it is smaller than the sum of its proper divisors (12558762402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12151361406 is a wasteful number, since it uses less digits than its factorization.

12151361406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12156.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 12151361406 its reverse (60416315121), we get a palindrome (72567676527).

The spelling of 12151361406 in words is "twelve billion, one hundred fifty-one million, three hundred sixty-one thousand, four hundred six".

Divisors: 1 2 3 6 61 122 183 366 4217 7873 8434 12651 15746 23619 25302 47238 257237 480253 514474 771711 960506 1440759 1543422 2881518 33200441 66400882 99601323 199202646 2025226901 4050453802 6075680703 12151361406