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31054403123 = 291995381113
BaseRepresentation
bin11100111010111111…
…001001011000110011
32222011020100010112122
4130322333021120303
51002044411344443
622133255344455
72146362033302
oct347277113063
988136303478
1031054403123
1112196445777
12602808212b
132c0b96c883
1417084b8439
15c1b4a4968
hex73afc9633

31054403123 has 8 divisors (see below), whose sum is σ = 32286684000. Its totient is φ = 29832884928.

The previous prime is 31054403101. The next prime is 31054403153. The reversal of 31054403123 is 32130445013.

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 31054403123 - 212 = 31054399027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31054403092 and 31054403101.

It is not an unprimeable number, because it can be changed into a prime (31054403153) 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, 2684786 + ... + 2696327.

It is an arithmetic number, because the mean of its divisors is an integer number (4035835500).

Almost surely, 231054403123 is an apocalyptic number.

31054403123 is a deficient number, since it is larger than the sum of its proper divisors (1232280877).

31054403123 is a wasteful number, since it uses less digits than its factorization.

31054403123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381341.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 31054403123 its reverse (32130445013), we get a palindrome (63184848136).

The spelling of 31054403123 in words is "thirty-one billion, fifty-four million, four hundred three thousand, one hundred twenty-three".

Divisors: 1 29 199 5771 5381113 156052277 1070841487 31054403123