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54135354646 = 227067677323
BaseRepresentation
bin110010011010101101…
…111111010100010110
312011201210012221202001
4302122231333110112
51341332122322041
640511444305514
73624344631202
oct623255772426
9164653187661
1054135354646
1120a5aaa621a
12a5a99a229a
135149733239
142897a39b02
15161c955131
hexc9ab7f516

54135354646 has 4 divisors (see below), whose sum is σ = 81203031972. Its totient is φ = 27067677322.

The previous prime is 54135354619. The next prime is 54135354649. The reversal of 54135354646 is 64645353145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64645353145 = 512929070629.

It is a junction number, because it is equal to n+sod(n) for n = 54135354596 and 54135354605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54135354649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13533838660 + ... + 13533838663.

It is an arithmetic number, because the mean of its divisors is an integer number (20300757993).

Almost surely, 254135354646 is an apocalyptic number.

54135354646 is a deficient number, since it is larger than the sum of its proper divisors (27067677326).

54135354646 is a wasteful number, since it uses less digits than its factorization.

54135354646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27067677325.

The product of its digits is 2592000, while the sum is 46.

The spelling of 54135354646 in words is "fifty-four billion, one hundred thirty-five million, three hundred fifty-four thousand, six hundred forty-six".

Divisors: 1 2 27067677323 54135354646