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40022442031 = 1113279877217
BaseRepresentation
bin100101010001100001…
…100000000000101111
310211022020021201011211
4211101201200000233
51123431221121111
630215215455251
72614536100315
oct452141400057
9124266251154
1040022442031
1115a78697080
12790b527527
133a0a90c380
141d195700b5
15109396b521
hex95186002f

40022442031 has 8 divisors (see below), whose sum is σ = 47019372624. Its totient is φ = 33585265920.

The previous prime is 40022442007. The next prime is 40022442073. The reversal of 40022442031 is 13024422004.

It is a happy number.

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 40022442031 - 25 = 40022441999 is a prime.

It is a super-2 number, since 2×400224420312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40022441993 and 40022442011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40022442431) 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, 139938466 + ... + 139938751.

It is an arithmetic number, because the mean of its divisors is an integer number (5877421578).

Almost surely, 240022442031 is an apocalyptic number.

40022442031 is a deficient number, since it is larger than the sum of its proper divisors (6996930593).

40022442031 is a wasteful number, since it uses less digits than its factorization.

40022442031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279877241.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 40022442031 its reverse (13024422004), we get a palindrome (53046864035).

The spelling of 40022442031 in words is "forty billion, twenty-two million, four hundred forty-two thousand, thirty-one".

Divisors: 1 11 13 143 279877217 3078649387 3638403821 40022442031