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40043355031 = 137787937097
BaseRepresentation
bin100101010010110001…
…010001101110010111
310211100200122012102101
4211102301101232113
51124002044330111
630221244022531
72615211621211
oct452261215627
9124320565371
1040043355031
1115a89480349
127916531a47
133a12052224
141d1c2555b1
1510956ecbc1
hex952c51b97

40043355031 has 8 divisors (see below), whose sum is σ = 40341849120. Its totient is φ = 39744951168.

The previous prime is 40043355013. The next prime is 40043355067. The reversal of 40043355031 is 13055334004.

40043355031 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 not a de Polignac number, because 40043355031 - 27 = 40043354903 is a prime.

It is a super-2 number, since 2×400433550312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40043355071) 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, 1060875 + ... + 1097971.

It is an arithmetic number, because the mean of its divisors is an integer number (5042731140).

Almost surely, 240043355031 is an apocalyptic number.

40043355031 is a deficient number, since it is larger than the sum of its proper divisors (298494089).

40043355031 is a wasteful number, since it uses less digits than its factorization.

40043355031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45113.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 40043355031 its reverse (13055334004), we get a palindrome (53098689035).

The spelling of 40043355031 in words is "forty billion, forty-three million, three hundred fifty-five thousand, thirty-one".

Divisors: 1 137 7879 37097 1079423 5082289 292287263 40043355031