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54863497 = 134220269
BaseRepresentation
bin1101000101001…
…0011010001001
310211020100120101
43101102122021
5103021112442
65235525401
71234221613
oct321223211
9124210511
1054863497
1128a72837
1216459861
13b49c010
147401db3
154c3acb7
hex3452689

54863497 has 4 divisors (see below), whose sum is σ = 59083780. Its totient is φ = 50643216.

The previous prime is 54863467. The next prime is 54863509. The reversal of 54863497 is 79436845.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79436845 = 515887369.

It can be written as a sum of positive squares in 2 ways, for example, as 27237961 + 27625536 = 5219^2 + 5256^2 .

It is a de Polignac number, because none of the positive numbers 2k-54863497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54863467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2110122 + ... + 2110147.

It is an arithmetic number, because the mean of its divisors is an integer number (14770945).

Almost surely, 254863497 is an apocalyptic number.

It is an amenable number.

54863497 is a deficient number, since it is larger than the sum of its proper divisors (4220283).

54863497 is a wasteful number, since it uses less digits than its factorization.

54863497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220282.

The product of its digits is 725760, while the sum is 46.

The square root of 54863497 is about 7406.9897394286. The cubic root of 54863497 is about 379.9803706389.

The spelling of 54863497 in words is "fifty-four million, eight hundred sixty-three thousand, four hundred ninety-seven".

Divisors: 1 13 4220269 54863497