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40680041 = 265915299
BaseRepresentation
bin1001101100101…
…1101001101001
32211112202112012
42123023221221
540403230131
64011525305
71002526463
oct233135151
984482465
1040680041
1120a65576
1211759835
13857423c
14558d133
15388852b
hex26cba69

40680041 has 4 divisors (see below), whose sum is σ = 40698000. Its totient is φ = 40662084.

The previous prime is 40680037. The next prime is 40680047. The reversal of 40680041 is 14008604.

It is a happy number.

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 40680041 - 22 = 40680037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40679989 and 40680016.

It is not an unprimeable number, because it can be changed into a prime (40680047) 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, 4991 + ... + 10308.

It is an arithmetic number, because the mean of its divisors is an integer number (10174500).

Almost surely, 240680041 is an apocalyptic number.

It is an amenable number.

40680041 is a deficient number, since it is larger than the sum of its proper divisors (17959).

40680041 is a wasteful number, since it uses less digits than its factorization.

40680041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17958.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 40680041 is about 6378.0907017696. The cubic root of 40680041 is about 343.9223983283.

Adding to 40680041 its reverse (14008604), we get a palindrome (54688645).

The spelling of 40680041 in words is "forty million, six hundred eighty thousand, forty-one".

Divisors: 1 2659 15299 40680041