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12423211015 = 55774306139
BaseRepresentation
bin10111001000111101…
…10010100000000111
31012001210110111201111
423210132302200013
5200420320223030
65412424305451
7616600360045
oct134436624007
935053414644
1012423211015
1152a5640346
1224a8612287
13122ca41c47
1485bd05395
154ca9bb62a
hex2e47b2807

12423211015 has 8 divisors (see below), whose sum is σ = 14933693520. Its totient is φ = 9921341952.

The previous prime is 12423210967. The next prime is 12423211019. The reversal of 12423211015 is 51011232421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12423211015 - 213 = 12423202823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423211019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2150185 + ... + 2155954.

It is an arithmetic number, because the mean of its divisors is an integer number (1866711690).

Almost surely, 212423211015 is an apocalyptic number.

12423211015 is a deficient number, since it is larger than the sum of its proper divisors (2510482505).

12423211015 is an equidigital number, since it uses as much as digits as its factorization.

12423211015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306721.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 12423211015 its reverse (51011232421), we get a palindrome (63434443436).

The spelling of 12423211015 in words is "twelve billion, four hundred twenty-three million, two hundred eleven thousand, fifteen".

Divisors: 1 5 577 2885 4306139 21530695 2484642203 12423211015