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12454843061 = 31401769131
BaseRepresentation
bin10111001100101110…
…11101001010110101
31012010222222120201202
423212113131022311
5201001414434221
65415514302245
7620433263543
oct134627351265
935128876652
1012454843061
115311485a31
1224b7127985
131236468a2b
148621bad93
154cd668d0b
hex2e65dd2b5

12454843061 has 4 divisors (see below), whose sum is σ = 12856612224. Its totient is φ = 12053073900.

The previous prime is 12454843043. The next prime is 12454843081. The reversal of 12454843061 is 16034845421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16034845421 = 72290692203.

It is a cyclic number.

It is not a de Polignac number, because 12454843061 - 26 = 12454842997 is a prime.

It is a super-3 number, since 3×124548430613 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12454843001) 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, 200884535 + ... + 200884596.

It is an arithmetic number, because the mean of its divisors is an integer number (3214153056).

Almost surely, 212454843061 is an apocalyptic number.

It is an amenable number.

12454843061 is a deficient number, since it is larger than the sum of its proper divisors (401769163).

12454843061 is an equidigital number, since it uses as much as digits as its factorization.

12454843061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401769162.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 12454843061 in words is "twelve billion, four hundred fifty-four million, eight hundred forty-three thousand, sixty-one".

Divisors: 1 31 401769131 12454843061