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54783641 = 114980331
BaseRepresentation
bin1101000011111…
…0111010011001
310211002022000202
43100332322121
5103011034031
65234111545
71233440033
oct320767231
9124068022
1054783641
1128a18840
121641b5b5
13b471873
1473c0c53
154c222cb
hex343ee99

54783641 has 4 divisors (see below), whose sum is σ = 59763984. Its totient is φ = 49803300.

The previous prime is 54783637. The next prime is 54783647. The reversal of 54783641 is 14638745.

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 not a de Polignac number, because 54783641 - 22 = 54783637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54783595 and 54783604.

It is not an unprimeable number, because it can be changed into a prime (54783647) 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, 2490155 + ... + 2490176.

It is an arithmetic number, because the mean of its divisors is an integer number (14940996).

Almost surely, 254783641 is an apocalyptic number.

It is an amenable number.

54783641 is a deficient number, since it is larger than the sum of its proper divisors (4980343).

54783641 is a wasteful number, since it uses less digits than its factorization.

54783641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980342.

The product of its digits is 80640, while the sum is 38.

The square root of 54783641 is about 7401.5971924984. The cubic root of 54783641 is about 379.7959222763.

Subtracting from 54783641 its reverse (14638745), we obtain a square (40144896 = 63362).

It can be divided in two parts, 5478 and 3641, that added together give a palindrome (9119).

The spelling of 54783641 in words is "fifty-four million, seven hundred eighty-three thousand, six hundred forty-one".

Divisors: 1 11 4980331 54783641