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104431013031 = 371249488573
BaseRepresentation
bin110000101000010010…
…0101100110010100111
3100222112222101010102110
41201100210230302213
53202333314404111
6115550331012103
710354616651562
oct1412044546247
9328488333373
10104431013031
114031a647844
12182a589a033
139b03810847
1450a972d4d9
152ab324c5a6
hex185092cca7

104431013031 has 8 divisors (see below), whose sum is σ = 139243590000. Its totient is φ = 69619555712.

The previous prime is 104431012999. The next prime is 104431013047. The reversal of 104431013031 is 130310134401.

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 104431013031 - 25 = 104431012999 is a prime.

It is a super-2 number, since 2×1044310130312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 104431012989 and 104431013007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104431013051) 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, 30540 + ... + 458033.

It is an arithmetic number, because the mean of its divisors is an integer number (17405448750).

Almost surely, 2104431013031 is an apocalyptic number.

104431013031 is a deficient number, since it is larger than the sum of its proper divisors (34812576969).

104431013031 is an equidigital number, since it uses as much as digits as its factorization.

104431013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559825.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 104431013031 its reverse (130310134401), we get a palindrome (234741147432).

The spelling of 104431013031 in words is "one hundred four billion, four hundred thirty-one million, thirteen thousand, thirty-one".

Divisors: 1 3 71249 213747 488573 1465719 34810337677 104431013031