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54426677749 = 75771897857
BaseRepresentation
bin110010101100000101…
…010011000111110101
312012111002101200220121
4302230011103013311
51342431212141444
641000412331541
73634513061533
oct625405230765
9165432350817
1054426677749
112109a493614
12a66b473bb1
135194bb3782
1428c45d1153
1516382ed084
hexcac1531f5

54426677749 has 4 divisors (see below), whose sum is σ = 54498576364. Its totient is φ = 54354779136.

The previous prime is 54426677731. The next prime is 54426677761. The reversal of 54426677749 is 94777662445.

54426677749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27417398724 + 27009279025 = 165582^2 + 164345^2 .

It is a cyclic number.

It is not a de Polignac number, because 54426677749 - 27 = 54426677621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54426677779) 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, 35948172 + ... + 35949685.

It is an arithmetic number, because the mean of its divisors is an integer number (13624644091).

Almost surely, 254426677749 is an apocalyptic number.

It is an amenable number.

54426677749 is a deficient number, since it is larger than the sum of its proper divisors (71898615).

54426677749 is an equidigital number, since it uses as much as digits as its factorization.

54426677749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71898614.

The product of its digits is 71124480, while the sum is 61.

The spelling of 54426677749 in words is "fifty-four billion, four hundred twenty-six million, six hundred seventy-seven thousand, seven hundred forty-nine".

Divisors: 1 757 71897857 54426677749