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540255805 = 5131981919
BaseRepresentation
bin100000001100111…
…010011000111101
31101122120211122021
4200030322120331
52101301141210
6125335320141
716250045545
oct4014723075
91348524567
10540255805
11257a62201
12130b20051
1387c0b1bb
1451a74325
153266abda
hex2033a63d

540255805 has 8 divisors (see below), whose sum is σ = 648806400. Its totient is φ = 431871696.

The previous prime is 540255769. The next prime is 540255847. The reversal of 540255805 is 508552045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540255805 - 213 = 540247613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34365 + ... + 47554.

It is an arithmetic number, because the mean of its divisors is an integer number (81100800).

Almost surely, 2540255805 is an apocalyptic number.

It is an amenable number.

540255805 is a deficient number, since it is larger than the sum of its proper divisors (108550595).

540255805 is a wasteful number, since it uses less digits than its factorization.

540255805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83243.

The product of its (nonzero) digits is 40000, while the sum is 34.

The square root of 540255805 is about 23243.4034728135. The cubic root of 540255805 is about 814.4538501608.

The spelling of 540255805 in words is "five hundred forty million, two hundred fifty-five thousand, eight hundred five".

Divisors: 1 5 1319 6595 81919 409595 108051161 540255805