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240680046 = 2340113341
BaseRepresentation
bin11100101100001…
…11110001101110
3121202212210221210
432112013301232
5443103230141
635514335250
75651514045
oct1626076156
9552783853
10240680046
11113948532
126872a526
133ab2b539
1423d7155c
15161e2916
hexe587c6e

240680046 has 8 divisors (see below), whose sum is σ = 481360104. Its totient is φ = 80226680.

The previous prime is 240680009. The next prime is 240680047. The reversal of 240680046 is 640086042.

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

240680046 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 240679995 and 240680022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240680047) 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, 20056665 + ... + 20056676.

It is an arithmetic number, because the mean of its divisors is an integer number (60170013).

Almost surely, 2240680046 is an apocalyptic number.

240680046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240680046 is a wasteful number, since it uses less digits than its factorization.

240680046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40113346.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 240680046 is about 15513.8662492623. The cubic root of 240680046 is about 622.0329090710.

Subtracting from 240680046 its product of nonzero digits (9216), we obtain a triangular number (240670830 = T21939).

The spelling of 240680046 in words is "two hundred forty million, six hundred eighty thousand, forty-six".

Divisors: 1 2 3 6 40113341 80226682 120340023 240680046