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31013130110 = 2583183120407
BaseRepresentation
bin11100111000100001…
…101100111101111110
32222001100200020121112
4130320201230331332
51002003330130420
622125223002022
72145351153644
oct347041547576
988040606545
1031013130110
1112175115746
126016299312
132c0324b781
141702c13194
15c17a508c5
hex73886cf7e

31013130110 has 32 divisors (see below), whose sum is σ = 56529833472. Its totient is φ = 12248497440.

The previous prime is 31013130101. The next prime is 31013130131. The reversal of 31013130110 is 1103131013.

It is a happy number.

It is a super-2 number, since 2×310131301102 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1509527 + ... + 1529933.

It is an arithmetic number, because the mean of its divisors is an integer number (1766557296).

Almost surely, 231013130110 is an apocalyptic number.

31013130110 is a deficient number, since it is larger than the sum of its proper divisors (25516703362).

31013130110 is a wasteful number, since it uses less digits than its factorization.

31013130110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22328.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31013130110 its reverse (1103131013), we get a palindrome (32116261123).

The spelling of 31013130110 in words is "thirty-one billion, thirteen million, one hundred thirty thousand, one hundred ten".

Divisors: 1 2 5 10 83 166 415 830 1831 3662 9155 18310 20407 40814 102035 151973 204070 303946 759865 1519730 1693781 3387562 8468905 16937810 37365217 74730434 186826085 373652170 3101313011 6202626022 15506565055 31013130110