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31010230111219 = 2231187689916981
BaseRepresentation
bin1110000110100001000011…
…10000000000101111110011
311001210112211020212200100021
413003100201300000233303
513031032422402024334
6145541523020304311
76350262260555332
oct703204160005763
9131715736780307
1031010230111219
11997640150aa17
123589ba73a2097
13143c337c93028
14792c90335d19
1538b9a97043b4
hex1c3421c00bf3

31010230111219 has 16 divisors (see below), whose sum is σ = 31181886489600. Its totient is φ = 30838875907680.

The previous prime is 31010230111171. The next prime is 31010230111243. The reversal of 31010230111219 is 91211103201013.

It is a cyclic number.

It is not a de Polignac number, because 31010230111219 - 211 = 31010230109171 is a prime.

It is a super-2 number, since 2×310102301112192 (a number of 28 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 = 31010230111193 and 31010230111202.

It is not an unprimeable number, because it can be changed into a prime (31010230112219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1826163709 + ... + 1826180689.

It is an arithmetic number, because the mean of its divisors is an integer number (1948867905600).

Almost surely, 231010230111219 is an apocalyptic number.

31010230111219 is a deficient number, since it is larger than the sum of its proper divisors (171656378381).

31010230111219 is a wasteful number, since it uses less digits than its factorization.

31010230111219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25290.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 31010230111219 in words is "thirty-one trillion, ten billion, two hundred thirty million, one hundred eleven thousand, two hundred nineteen".

Divisors: 1 223 1187 6899 16981 264701 1538477 3786763 8189113 20156447 117151919 1826172199 4494887681 26124877937 139059327853 31010230111219