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12124412255 = 52424882451
BaseRepresentation
bin10110100101010101…
…11101100101011111
31011021222012221212202
423102222331211133
5144312322143010
65323032122115
7606311542454
oct132252754537
934258187782
1012124412255
115161a0741a
12242453633b
1311b2b74b47
1483036582b
154ae6486a5
hex2d2abd95f

12124412255 has 4 divisors (see below), whose sum is σ = 14549294712. Its totient is φ = 9699529800.

The previous prime is 12124412233. The next prime is 12124412273. The reversal of 12124412255 is 55221442121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55221442121 = 304918111329.

It is not a de Polignac number, because 12124412255 - 210 = 12124411231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1212441221 + ... + 1212441230.

It is an arithmetic number, because the mean of its divisors is an integer number (3637323678).

Almost surely, 212124412255 is an apocalyptic number.

12124412255 is a deficient number, since it is larger than the sum of its proper divisors (2424882457).

12124412255 is an equidigital number, since it uses as much as digits as its factorization.

12124412255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424882456.

The product of its digits is 6400, while the sum is 29.

Adding to 12124412255 its reverse (55221442121), we get a palindrome (67345854376).

The spelling of 12124412255 in words is "twelve billion, one hundred twenty-four million, four hundred twelve thousand, two hundred fifty-five".

Divisors: 1 5 2424882451 12124412255