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20022303210 = 23571337198221
BaseRepresentation
bin10010101001011011…
…000001100111101010
31220200101111101111120
4102221123001213222
5312001202200320
613110443240110
71306112524560
oct225133014752
956611441446
1020022303210
118545082828
123a69519036
131b711b64c0
14d7d24da30
157c2bc4440
hex4a96c19ea

20022303210 has 128 divisors (see below), whose sum is σ = 60741563904. Its totient is φ = 4110289920.

The previous prime is 20022303193. The next prime is 20022303251. The reversal of 20022303210 is 1230322002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20022303210.

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 63 ways as a sum of consecutive naturals, for example, 1900 + ... + 200120.

It is an arithmetic number, because the mean of its divisors is an integer number (474543468).

Almost surely, 220022303210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20022303210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30370781952).

20022303210 is an abundant number, since it is smaller than the sum of its proper divisors (40719260694).

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

20022303210 is a wasteful number, since it uses less digits than its factorization.

20022303210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198288.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20022303210 its reverse (1230322002), we get a palindrome (21252625212).

The spelling of 20022303210 in words is "twenty billion, twenty-two million, three hundred three thousand, two hundred ten".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 37 39 42 65 70 74 78 91 105 111 130 182 185 195 210 222 259 273 370 390 455 481 518 546 555 777 910 962 1110 1295 1365 1443 1554 2405 2590 2730 2886 3367 3885 4810 6734 7215 7770 10101 14430 16835 20202 33670 50505 101010 198221 396442 594663 991105 1189326 1387547 1982210 2576873 2775094 2973315 4162641 5153746 5946630 6937735 7334177 7730619 8325282 12884365 13875470 14668354 15461238 18038111 20813205 22002531 25768730 36076222 36670885 38653095 41626410 44005062 51339239 54114333 73341770 77306190 90190555 95344301 102678478 108228666 110012655 154017717 180381110 190688602 220025310 256696195 270571665 286032903 308035434 476721505 513392390 541143330 572065806 667410107 770088585 953443010 1334820214 1430164515 1540177170 2002230321 2860329030 3337050535 4004460642 6674101070 10011151605 20022303210