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240027813 = 3310188019
BaseRepresentation
bin11100100111010…
…00100010100101
3121201122200021000
432103220202211
5442421342223
635452343513
75643126354
oct1623504245
9551580230
10240027813
111135424a3
1268474b99
133a9606bc
1423c4199b
1516114543
hexe4e88a5

240027813 has 16 divisors (see below), whose sum is σ = 359121600. Its totient is φ = 158432400.

The previous prime is 240027803. The next prime is 240027847. The reversal of 240027813 is 318720042.

It is not a de Polignac number, because 240027813 - 24 = 240027797 is a prime.

It is a super-2 number, since 2×2400278132 = 115226702027125938, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240027803) 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 15 ways as a sum of consecutive naturals, for example, 41283 + ... + 46736.

It is an arithmetic number, because the mean of its divisors is an integer number (22445100).

Almost surely, 2240027813 is an apocalyptic number.

It is an amenable number.

240027813 is a deficient number, since it is larger than the sum of its proper divisors (119093787).

240027813 is a wasteful number, since it uses less digits than its factorization.

240027813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88129 (or 88123 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 240027813 is about 15492.8310195393. The cubic root of 240027813 is about 621.4705062240.

Adding to 240027813 its reverse (318720042), we get a palindrome (558747855).

The spelling of 240027813 in words is "two hundred forty million, twenty-seven thousand, eight hundred thirteen".

Divisors: 1 3 9 27 101 303 909 2727 88019 264057 792171 2376513 8889919 26669757 80009271 240027813