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31312101303230 = 25115991531310397
BaseRepresentation
bin1110001111010011010101…
…01011001110001110111110
311002212102000011210002222012
413013221222223032032332
513101004140413200410
6150332325235451222
76411140026425206
oct707515253161676
9132772004702865
1031312101303230
119a824299764a0
1236185b3456b12
131461945679c37
147a3729ba3406
153947762d0605
hex1c7a6aace3be

31312101303230 has 64 divisors (see below), whose sum is σ = 61628653785600. Its totient is φ = 11359748649600.

The previous prime is 31312101303211. The next prime is 31312101303253. The reversal of 31312101303230 is 3230310121313.

It is a junction number, because it is equal to n+sod(n) for n = 31312101303196 and 31312101303205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100722392 + ... + 101032788.

It is an arithmetic number, because the mean of its divisors is an integer number (962947715400).

Almost surely, 231312101303230 is an apocalyptic number.

31312101303230 is a deficient number, since it is larger than the sum of its proper divisors (30316552482370).

31312101303230 is a wasteful number, since it uses less digits than its factorization.

31312101303230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312545.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31312101303230 its reverse (3230310121313), we get a palindrome (34542411424543).

The spelling of 31312101303230 in words is "thirty-one trillion, three hundred twelve billion, one hundred one million, three hundred three thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 599 1198 1531 2995 3062 5990 6589 7655 13178 15310 16841 32945 33682 65890 84205 168410 310397 620794 917069 1551985 1834138 3103970 3414367 4585345 6828734 9170690 10087759 17071835 20175518 34143670 50438795 100877590 185927803 371855606 475217807 929639015 950435614 1859278030 2045205833 2376089035 4090411666 4752178070 5227395877 10226029165 10454791754 20452058330 26136979385 52273958770 284655466393 569310932786 1423277331965 2846554663930 3131210130323 6262420260646 15656050651615 31312101303230