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540102531 = 3199475483
BaseRepresentation
bin100000001100010…
…100111110000011
31101122022001101110
4200030110332003
52101231240111
6125332134403
716245536643
oct4014247603
91348261343
10540102531
11257968031
12130a67403
1387b864c7
1451a34523
153263a5a6
hex20314f83

540102531 has 8 divisors (see below), whose sum is σ = 758038720. Its totient is φ = 341117352.

The previous prime is 540102457. The next prime is 540102533. The reversal of 540102531 is 135201045.

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

It is not a de Polignac number, because 540102531 - 213 = 540094339 is a prime.

It is a super-2 number, since 2×5401025312 = 583421487985211922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540102498 and 540102507.

It is not an unprimeable number, because it can be changed into a prime (540102533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4737685 + ... + 4737798.

It is an arithmetic number, because the mean of its divisors is an integer number (94754840).

Almost surely, 2540102531 is an apocalyptic number.

540102531 is a deficient number, since it is larger than the sum of its proper divisors (217936189).

540102531 is a wasteful number, since it uses less digits than its factorization.

540102531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9475505.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 540102531 is about 23240.1060883981. The cubic root of 540102531 is about 814.3768209673.

Adding to 540102531 its reverse (135201045), we get a palindrome (675303576).

The spelling of 540102531 in words is "five hundred forty million, one hundred two thousand, five hundred thirty-one".

Divisors: 1 3 19 57 9475483 28426449 180034177 540102531