Search a number
-
+
54238280077 = 94757273791
BaseRepresentation
bin110010100000110110…
…100111100110001101
312011222221220002220001
4302200312213212031
51342034444430302
640530002324301
73630034526302
oct624066474615
9164887802801
1054238280077
1121003105663
12a618359691
135164b5c467
1428a758d0a9
1516269d6787
hexca0da798d

54238280077 has 4 divisors (see below), whose sum is σ = 54295554816. Its totient is φ = 54181005340.

The previous prime is 54238280009. The next prime is 54238280087. The reversal of 54238280077 is 77008283245.

54238280077 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, 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-54238280077 is a prime.

It is a super-2 number, since 2×542382800772 (a number of 22 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 (54238280087) 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, 28635949 + ... + 28637842.

It is an arithmetic number, because the mean of its divisors is an integer number (13573888704).

Almost surely, 254238280077 is an apocalyptic number.

It is an amenable number.

54238280077 is a deficient number, since it is larger than the sum of its proper divisors (57274739).

54238280077 is an equidigital number, since it uses as much as digits as its factorization.

54238280077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57274738.

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 54238280077 in words is "fifty-four billion, two hundred thirty-eight million, two hundred eighty thousand, seventy-seven".

Divisors: 1 947 57273791 54238280077