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12152616340 = 225607630817
BaseRepresentation
bin10110101000101101…
…00011010110010100
31011100221021212121111
423110112203112110
5144342032210330
65325520424404
7610103351224
oct132426432624
934327255544
1012152616340
115176920587
122431a78104
1311b896b557
14833dc8084
154b1d6a32a
hex2d45a3594

12152616340 has 12 divisors (see below), whose sum is σ = 25520494356. Its totient is φ = 4861046528.

The previous prime is 12152616323. The next prime is 12152616347. The reversal of 12152616340 is 4361625121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8210534544 + 3942081796 = 90612^2 + 62786^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152616347) 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, 303815389 + ... + 303815428.

It is an arithmetic number, because the mean of its divisors is an integer number (2126707863).

Almost surely, 212152616340 is an apocalyptic number.

12152616340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12152616340 is an abundant number, since it is smaller than the sum of its proper divisors (13367878016).

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

12152616340 is a wasteful number, since it uses less digits than its factorization.

12152616340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607630826 (or 607630824 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 12152616340 in words is "twelve billion, one hundred fifty-two million, six hundred sixteen thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 607630817 1215261634 2430523268 3038154085 6076308170 12152616340