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3113101212 = 22313472811511
BaseRepresentation
bin1011100110001110…
…0010011110011100
322000221211221000220
42321203202132130
522333423214322
61232524321340
7140100631554
oct27143423634
98027757026
103113101212
1113582a0021
1272a6a3250
133a7c64330
14217648164
1513348555c
hexb98e279c

3113101212 has 96 divisors (see below), whose sum is σ = 8022841344. Its totient is φ = 933542400.

The previous prime is 3113101207. The next prime is 3113101241. The reversal of 3113101212 is 2121013113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3113101191 and 3113101200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2059537 + ... + 2061047.

It is an arithmetic number, because the mean of its divisors is an integer number (83571264).

Almost surely, 23113101212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3113101212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4011420672).

3113101212 is an abundant number, since it is smaller than the sum of its proper divisors (4909740132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3113101212 is a wasteful number, since it uses less digits than its factorization.

3113101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859 (or 1857 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 3113101212 is about 55795.1719416653. The cubic root of 3113101212 is about 1460.1509214099.

Adding to 3113101212 its reverse (2121013113), we get a palindrome (5234114325).

The spelling of 3113101212 in words is "three billion, one hundred thirteen million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 47 52 78 94 141 156 188 281 282 562 564 611 843 1124 1222 1511 1686 1833 2444 3022 3372 3653 3666 4533 6044 7306 7332 9066 10959 13207 14612 18132 19643 21918 26414 39286 39621 43836 52828 58929 71017 78572 79242 117858 142034 158484 171691 213051 235716 284068 343382 424591 426102 515073 686764 849182 852204 923221 1030146 1273773 1698364 1846442 2060292 2547546 2769663 3692884 5095092 5519683 5539326 11039366 11078652 16559049 19955777 22078732 33118098 39911554 59867331 66236196 79823108 119734662 239469324 259425101 518850202 778275303 1037700404 1556550606 3113101212