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1242422143013 = 12172791365779
BaseRepresentation
bin10010000101000110001…
…000010110100000100101
311101202220112110021001102
4102011012020112200211
5130323440032034023
62350432202205445
7155522243653202
oct22050610264045
94352815407042
101242422143013
114399a9a01017
121809587b3885
139021040988c
14441c267aca9
15224b916e628
hex12146216825

1242422143013 has 8 divisors (see below), whose sum is σ = 1243891951680. Its totient is φ = 1240953073920.

The previous prime is 1242422142961. The next prime is 1242422143063. The reversal of 1242422143013 is 3103412242421.

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 1242422143013 - 226 = 1242355034149 is a prime.

It is a super-2 number, since 2×12424221430132 (a number of 25 digits) contains 22 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 (1242422143063) 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, 3213758 + ... + 3579536.

It is an arithmetic number, because the mean of its divisors is an integer number (155486493960).

Almost surely, 21242422143013 is an apocalyptic number.

It is an amenable number.

1242422143013 is a deficient number, since it is larger than the sum of its proper divisors (1469808667).

1242422143013 is a wasteful number, since it uses less digits than its factorization.

1242422143013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369787.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1242422143013 its reverse (3103412242421), we get a palindrome (4345834385434).

The spelling of 1242422143013 in words is "one trillion, two hundred forty-two billion, four hundred twenty-two million, one hundred forty-three thousand, thirteen".

Divisors: 1 1217 2791 365779 3396647 445153043 1020889189 1242422143013