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240386073 = 380128691
BaseRepresentation
bin11100101010000…
…00000000011001
3121202022212200220
432111000000121
5443014323243
635504150253
75646151014
oct1625000031
9552285626
10240386073
11113767684
1268608389
133aa577a5
1423cd637b
1516185783
hexe540019

240386073 has 4 divisors (see below), whose sum is σ = 320514768. Its totient is φ = 160257380.

The previous prime is 240386071. The next prime is 240386089. The reversal of 240386073 is 370683042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240386073 - 21 = 240386071 is a prime.

It is a super-2 number, since 2×2403860732 = 115570928184722658, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (240386071) 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, 40064343 + ... + 40064348.

It is an arithmetic number, because the mean of its divisors is an integer number (80128692).

Almost surely, 2240386073 is an apocalyptic number.

It is an amenable number.

240386073 is a deficient number, since it is larger than the sum of its proper divisors (80128695).

240386073 is an equidigital number, since it uses as much as digits as its factorization.

240386073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80128694.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 240386073 is about 15504.3888302635. The cubic root of 240386073 is about 621.7795500516.

The spelling of 240386073 in words is "two hundred forty million, three hundred eighty-six thousand, seventy-three".

Divisors: 1 3 80128691 240386073