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31200112013310 = 23253732077292091
BaseRepresentation
bin1110001100000010101111…
…00101111110111111111110
311002110200221110011201211200
413012001113211332333332
513042140312133411220
6150205044504400330
76400063601240532
oct706012745767776
9132420843151750
1031200112013310
119a39990934429
1235ba95a4760a6
131454208cb5806
1479c144711bc2
153918be73d890
hex1c605797effe

31200112013310 has 96 divisors (see below), whose sum is σ = 83315614048992. Its totient is φ = 8094884117760.

The previous prime is 31200112013179. The next prime is 31200112013387. The reversal of 31200112013310 is 1331021100213.

31200112013310 is a `hidden beast` number, since 3 + 120 + 0 + 11 + 201 + 331 + 0 = 666.

It is a super-2 number, since 2×312001120133102 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106670365 + ... + 106962455.

It is an arithmetic number, because the mean of its divisors is an integer number (867870979677).

Almost surely, 231200112013310 is an apocalyptic number.

31200112013310 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31200112013310 is an abundant number, since it is smaller than the sum of its proper divisors (52115502035682).

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

31200112013310 is a wasteful number, since it uses less digits than its factorization.

31200112013310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324218 (or 324215 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 31200112013310 its reverse (1331021100213), we get a palindrome (32531133113523).

The spelling of 31200112013310 in words is "thirty-one trillion, two hundred billion, one hundred twelve million, thirteen thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 37 45 74 90 111 185 222 333 370 555 666 1110 1665 3330 32077 64154 96231 160385 192462 288693 292091 320770 481155 577386 584182 876273 962310 1186849 1443465 1460455 1752546 2373698 2628819 2886930 2920910 3560547 4381365 5257638 5934245 7121094 8762730 10681641 10807367 11868490 13144095 17802735 21363282 21614734 26288190 32422101 35605470 53408205 54036835 64844202 97266303 106816410 108073670 162110505 194532606 324221010 486331515 972663030 9369403007 18738806014 28108209021 46847015035 56216418042 84324627063 93694030070 140541045105 168649254126 281082090210 346667911259 421623135315 693335822518 843246270630 1040003733777 1733339556295 2080007467554 3120011201331 3466679112590 5200018668885 6240022402662 10400037337770 15600056006655 31200112013310