Search a number
-
+
540287679 = 31321136333
BaseRepresentation
bin100000001101000…
…010001010111111
31101122122110100210
4200031002022333
52101303201204
6125340123503
716250240511
oct4015021277
91348573323
10540287679
11257a84148
12130b36593
1387c1c869
1451a81bb1
1532675389
hex203422bf

540287679 has 8 divisors (see below), whose sum is σ = 720934192. Its totient is φ = 359916480.

The previous prime is 540287651. The next prime is 540287689. The reversal of 540287679 is 976782045.

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

It is not a de Polignac number, because 540287679 - 217 = 540156607 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 (540287639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64204 + ... + 72129.

It is an arithmetic number, because the mean of its divisors is an integer number (90116774).

Almost surely, 2540287679 is an apocalyptic number.

540287679 is a deficient number, since it is larger than the sum of its proper divisors (180646513).

540287679 is a wasteful number, since it uses less digits than its factorization.

540287679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137657.

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 540287679 is about 23244.0891196020. The cubic root of 540287679 is about 814.4698668892.

The spelling of 540287679 in words is "five hundred forty million, two hundred eighty-seven thousand, six hundred seventy-nine".

Divisors: 1 3 1321 3963 136333 408999 180095893 540287679