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202024223240 = 23572331370221
BaseRepresentation
bin1011110000100110010…
…1010000001000001000
3201022110102012212202112
42330021211100020020
511302221200120430
6232450400121452
720411230364330
oct2741145201010
9638412185675
10202024223240
1178750453074
12331a1606288
13160877c7cc8
149ac6c840c0
1553c601e195
hex2f09950208

202024223240 has 64 divisors (see below), whose sum is σ = 542077436160. Its totient is φ = 66253904640.

The previous prime is 202024223231. The next prime is 202024223257. The reversal of 202024223240 is 42322420202.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15678671 + ... + 15691550.

It is an arithmetic number, because the mean of its divisors is an integer number (8469959940).

Almost surely, 2202024223240 is an apocalyptic number.

202024223240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202024223240 is an abundant number, since it is smaller than the sum of its proper divisors (340053212920).

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

202024223240 is a wasteful number, since it uses less digits than its factorization.

202024223240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31370262 (or 31370258 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 202024223240 its reverse (42322420202), we get a palindrome (244346643442).

The spelling of 202024223240 in words is "two hundred two billion, twenty-four million, two hundred twenty-three thousand, two hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 23 28 35 40 46 56 70 92 115 140 161 184 230 280 322 460 644 805 920 1288 1610 3220 6440 31370221 62740442 125480884 156851105 219591547 250961768 313702210 439183094 627404420 721515083 878366188 1097957735 1254808840 1443030166 1756732376 2195915470 2886060332 3607575415 4391830940 5050605581 5772120664 7215150830 8783661880 10101211162 14430301660 20202422324 25253027905 28860603320 40404844648 50506055810 101012111620 202024223240