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540382853 = 1573441929
BaseRepresentation
bin100000001101011…
…001011010000101
31101122211021220202
4200031121122011
52101314222403
6125342140245
716251115133
oct4015313205
91348737822
10540382853
112580396aa
12130b81685
1387c53c8a
1451aa8753
1532693688
hex20359685

540382853 has 4 divisors (see below), whose sum is σ = 543824940. Its totient is φ = 536940768.

The previous prime is 540382847. The next prime is 540382877. The reversal of 540382853 is 358283045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 358283045 = 571656609.

It can be written as a sum of positive squares in 2 ways, for example, as 270339364 + 270043489 = 16442^2 + 16433^2 .

It is a cyclic number.

It is not a de Polignac number, because 540382853 - 26 = 540382789 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 (540382883) 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, 1720808 + ... + 1721121.

It is an arithmetic number, because the mean of its divisors is an integer number (135956235).

Almost surely, 2540382853 is an apocalyptic number.

It is an amenable number.

540382853 is a deficient number, since it is larger than the sum of its proper divisors (3442087).

540382853 is a wasteful number, since it uses less digits than its factorization.

540382853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442086.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 540382853 is about 23246.1363026203. The cubic root of 540382853 is about 814.5176882055.

The spelling of 540382853 in words is "five hundred forty million, three hundred eighty-two thousand, eight hundred fifty-three".

Divisors: 1 157 3441929 540382853