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104420442431 = 534349453023
BaseRepresentation
bin110000100111111110…
…0011000000100111111
3100222112020111002021202
41201033330120010333
53202323113124211
6115545312250115
710354431054524
oct1411774300477
9328466432252
10104420442431
1140314687a08
12182a224093b
139b0157c356
1450a817b14b
152ab236053b
hex184ff1813f

104420442431 has 8 divisors (see below), whose sum is σ = 106415337600. Its totient is φ = 102426462112.

The previous prime is 104420442389. The next prime is 104420442481. The reversal of 104420442431 is 134244024401.

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-104420442431 is a prime.

It is a super-2 number, since 2×1044204424312 (a number of 23 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 = 104420442394 and 104420442403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104420442481) 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, 3986 + ... + 457008.

It is an arithmetic number, because the mean of its divisors is an integer number (13301917200).

Almost surely, 2104420442431 is an apocalyptic number.

104420442431 is a deficient number, since it is larger than the sum of its proper divisors (1994895169).

104420442431 is an equidigital number, since it uses as much as digits as its factorization.

104420442431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457425.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 104420442431 its reverse (134244024401), we get a palindrome (238664466832).

The spelling of 104420442431 in words is "one hundred four billion, four hundred twenty million, four hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 53 4349 230497 453023 24010219 1970197027 104420442431