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12402045255 = 351077727131
BaseRepresentation
bin10111000110011100…
…00011000101000111
31012000022122011202110
423203032003011013
5200344410422010
65410350512103
7616222434225
oct134316030507
935008564673
1012402045255
1152946a4186
1224a1505633
131228541022
14859195b15
154c8bda120
hex2e3383147

12402045255 has 16 divisors (see below), whose sum is σ = 20028726144. Its totient is φ = 6552606240.

The previous prime is 12402045181. The next prime is 12402045259. The reversal of 12402045255 is 55254020421.

It is not a de Polignac number, because 12402045255 - 210 = 12402044231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402045259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3861961 + ... + 3865170.

It is an arithmetic number, because the mean of its divisors is an integer number (1251795384).

Almost surely, 212402045255 is an apocalyptic number.

12402045255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12402045255 is a deficient number, since it is larger than the sum of its proper divisors (7626680889).

12402045255 is a wasteful number, since it uses less digits than its factorization.

12402045255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7727246.

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 12402045255 its reverse (55254020421), we get a palindrome (67656065676).

The spelling of 12402045255 in words is "twelve billion, four hundred two million, forty-five thousand, two hundred fifty-five".

Divisors: 1 3 5 15 107 321 535 1605 7727131 23181393 38635655 115906965 826803017 2480409051 4134015085 12402045255