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54050043030121 = 220324534744907
BaseRepresentation
bin11000100101000100000011…
…00111010110101001101001
321002101010121102122021221001
430102202001213112221221
524041023442003430441
6310542125203115001
714245662311235235
oct1422420147265151
9232333542567831
1054050043030121
1116249549232996
12608b316072a61
132420b88176228
14d4c070c795c5
1563ae7415e731
hex3128819d6a69

54050043030121 has 4 divisors (see below), whose sum is σ = 54074577777232. Its totient is φ = 54025508283012.

The previous prime is 54050043030097. The next prime is 54050043030143. The reversal of 54050043030121 is 12103034005045.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54050043030121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54050043030121.

It is not an unprimeable number, because it can be changed into a prime (54050043030161) 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, 12267370251 + ... + 12267374656.

It is an arithmetic number, because the mean of its divisors is an integer number (13518644444308).

Almost surely, 254050043030121 is an apocalyptic number.

It is an amenable number.

54050043030121 is a deficient number, since it is larger than the sum of its proper divisors (24534747111).

54050043030121 is a wasteful number, since it uses less digits than its factorization.

54050043030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24534747110.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 54050043030121 its reverse (12103034005045), we get a palindrome (66153077035166).

The spelling of 54050043030121 in words is "fifty-four trillion, fifty billion, forty-three million, thirty thousand, one hundred twenty-one".

Divisors: 1 2203 24534744907 54050043030121