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40675979 = 194349787
BaseRepresentation
bin1001101100101…
…0101010001011
32211112112221202
42123022222023
540403112404
64011454415
71002511601
oct233125213
984475852
1040675979
1120a62513
121175740b
138572436
14558b871
15388721e
hex26caa8b

40675979 has 8 divisors (see below), whose sum is σ = 43813440. Its totient is φ = 37638216.

The previous prime is 40675931. The next prime is 40675991. The reversal of 40675979 is 97957604.

40675979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-40675979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40675919) 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, 24077 + ... + 25710.

It is an arithmetic number, because the mean of its divisors is an integer number (5476680).

Almost surely, 240675979 is an apocalyptic number.

40675979 is a deficient number, since it is larger than the sum of its proper divisors (3137461).

40675979 is a wasteful number, since it uses less digits than its factorization.

40675979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49849.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 40675979 is about 6377.7722599666. The cubic root of 40675979 is about 343.9109507876.

The spelling of 40675979 in words is "forty million, six hundred seventy-five thousand, nine hundred seventy-nine".

Divisors: 1 19 43 817 49787 945953 2140841 40675979