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40352052049 = 78415146289
BaseRepresentation
bin100101100101001010…
…110111001101010001
310212011012111122010021
4211211022313031101
51130120111131144
630312032303441
72625650532421
oct454512671521
9125135448107
1040352052049
1116127754a51
1279a19a1b81
133a60ca679a
141d4b250481
1510b2878884
hex9652b7351

40352052049 has 4 divisors (see below), whose sum is σ = 40357206180. Its totient is φ = 40346897920.

The previous prime is 40352052029. The next prime is 40352052067. The reversal of 40352052049 is 94025025304.

40352052049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25730405649 + 14621646400 = 160407^2 + 120920^2 .

It is a cyclic number.

It is not a de Polignac number, because 40352052049 - 25 = 40352052017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40352052019) 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, 2565304 + ... + 2580985.

It is an arithmetic number, because the mean of its divisors is an integer number (10089301545).

Almost surely, 240352052049 is an apocalyptic number.

It is an amenable number.

40352052049 is a deficient number, since it is larger than the sum of its proper divisors (5154131).

40352052049 is an equidigital number, since it uses as much as digits as its factorization.

40352052049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154130.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 40352052049 in words is "forty billion, three hundred fifty-two million, fifty-two thousand, forty-nine".

Divisors: 1 7841 5146289 40352052049