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20102232200 = 2352535932143
BaseRepresentation
bin10010101110001011…
…111011100010001000
31220212221220012110112
4102232023323202020
5312132132412300
613122420333452
71311103103651
oct225613734210
956787805415
1020102232200
118586205646
123a90244288
131b8492046b
14d89ad8528
157c9c11e35
hex4ae2fb888

20102232200 has 96 divisors (see below), whose sum is σ = 48428150400. Its totient is φ = 7755221760.

The previous prime is 20102232173. The next prime is 20102232223. The reversal of 20102232200 is 223220102.

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 23 ways as a sum of consecutive naturals, for example, 609329 + ... + 641471.

It is an arithmetic number, because the mean of its divisors is an integer number (504459900).

Almost surely, 220102232200 is an apocalyptic number.

20102232200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20102232200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24214075200).

20102232200 is an abundant number, since it is smaller than the sum of its proper divisors (28325918200).

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

20102232200 is a wasteful number, since it uses less digits than its factorization.

20102232200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32271 (or 32262 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20102232200 its reverse (223220102), we get a palindrome (20325452302).

The spelling of 20102232200 in words is "twenty billion, one hundred two million, two hundred thirty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 53 59 100 106 118 200 212 236 265 295 424 472 530 590 1060 1180 1325 1475 2120 2360 2650 2950 3127 5300 5900 6254 10600 11800 12508 15635 25016 31270 32143 62540 64286 78175 125080 128572 156350 160715 257144 312700 321430 625400 642860 803575 1285720 1607150 1703579 1896437 3214300 3407158 3792874 6428600 6814316 7585748 8517895 9482185 13628632 15171496 17035790 18964370 34071580 37928740 42589475 47410925 68143160 75857480 85178950 94821850 100511161 170357900 189643700 201022322 340715800 379287400 402044644 502555805 804089288 1005111610 2010223220 2512779025 4020446440 5025558050 10051116100 20102232200