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40109644801 = 349809142061
BaseRepresentation
bin100101010110101110…
…001001110000000001
310211112022101001220001
4211112232021300001
51124121032113201
630232012520001
72616645232642
oct452656116001
9124468331801
1040109644801
1116012937886
127934780001
133a229c2045
141d26d8d6c9
15109b444301
hex956b89c01

40109644801 has 8 divisors (see below), whose sum is σ = 40274577000. Its totient is φ = 39944999040.

The previous prime is 40109644789. The next prime is 40109644831. The reversal of 40109644801 is 10844690104.

It can be written as a sum of positive squares in 4 ways, for example, as 23474836225 + 16634808576 = 153215^2 + 128976^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40109644801 - 25 = 40109644769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40109644831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211311 + ... + 353371.

It is an arithmetic number, because the mean of its divisors is an integer number (5034322125).

Almost surely, 240109644801 is an apocalyptic number.

It is an amenable number.

40109644801 is a deficient number, since it is larger than the sum of its proper divisors (164932199).

40109644801 is a wasteful number, since it uses less digits than its factorization.

40109644801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143219.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 40109644801 in words is "forty billion, one hundred nine million, six hundred forty-four thousand, eight hundred one".

Divisors: 1 349 809 142061 282341 49579289 114927349 40109644801