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202220230020 = 223529311373693
BaseRepresentation
bin1011110001010101000…
…0111101010110000100
3201022222002001001111220
42330111100331112010
511303121334330040
6232522041200340
720416130410554
oct2742520752604
9638862031456
10202220230020
1178841058946
12332371900b0
13160b92b4853
149b04d07164
1553d833a2d0
hex2f1543d584

202220230020 has 96 divisors (see below), whose sum is σ = 587626341120. Its totient is φ = 51898344960.

The previous prime is 202220230007. The next prime is 202220230073. The reversal of 202220230020 is 20032022202.

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

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, 354294 + ... + 727986.

It is an arithmetic number, because the mean of its divisors is an integer number (6121107720).

Almost surely, 2202220230020 is an apocalyptic number.

202220230020 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 202220230020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293813170560).

202220230020 is an abundant number, since it is smaller than the sum of its proper divisors (385406111100).

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

202220230020 is a wasteful number, since it uses less digits than its factorization.

202220230020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374045 (or 374043 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 202220230020 its reverse (20032022202), we get a palindrome (222252252222).

The spelling of 202220230020 in words is "two hundred two billion, two hundred twenty million, two hundred thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 311 348 435 580 622 870 933 1244 1555 1740 1866 3110 3732 4665 6220 9019 9330 18038 18660 27057 36076 45095 54114 90190 108228 135285 180380 270570 373693 541140 747386 1121079 1494772 1868465 2242158 3736930 4484316 5605395 7473860 10837097 11210790 21674194 22421580 32511291 43348388 54185485 65022582 108370970 116218523 130045164 162556455 216741940 232437046 325112910 348655569 464874092 581092615 650225820 697311138 1162185230 1394622276 1743277845 2324370460 3370337167 3486555690 6740674334 6973111380 10111011501 13481348668 16851685835 20222023002 33703371670 40444046004 50555057505 67406743340 101110115010 202220230020