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2031000230220 = 22351325367102647
BaseRepresentation
bin11101100011100001000…
…011000001100101001100
321012011100220020201020220
4131203201003001211030
5231233442024331340
64153010103311340
7266510036054013
oct35434103014514
97164326221226
102031000230220
11713384755665
12289755a4b550
131196a3c17370
147042daa5a7a
1537c6e830ed0
hex1d8e10c194c

2031000230220 has 96 divisors (see below), whose sum is σ = 6124547939328. Its totient is φ = 499913939712.

The previous prime is 2031000230177. The next prime is 2031000230239. The reversal of 2031000230220 is 220320001302.

It is a super-3 number, since 3×20310002302203 (a number of 38 digits) contains 333 as substring.

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 2031000230220.

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 31 ways as a sum of consecutive naturals, for example, 19734937 + ... + 19837583.

It is an arithmetic number, because the mean of its divisors is an integer number (63797374368).

Almost surely, 22031000230220 is an apocalyptic number.

2031000230220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031000230220 is an abundant number, since it is smaller than the sum of its proper divisors (4093547709108).

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

2031000230220 is a wasteful number, since it uses less digits than its factorization.

2031000230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128039 (or 128037 counting only the distinct ones).

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

Adding to 2031000230220 its reverse (220320001302), we get a palindrome (2251320231522).

The spelling of 2031000230220 in words is "two trillion, thirty-one billion, two hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 25367 50734 76101 101468 102647 126835 152202 205294 253670 304404 307941 329771 380505 410588 507340 513235 615882 659542 761010 989313 1026470 1231764 1319084 1334411 1522020 1539705 1648855 1978626 2052940 2668822 3079410 3297710 3957252 4003233 4946565 5337644 6158820 6595420 6672055 8006466 9893130 13344110 16012932 19786260 20016165 26688220 40032330 80064660 2603846449 5207692898 7811539347 10415385796 13019232245 15623078694 26038464490 31246157388 33850003837 39057696735 52076928980 67700007674 78115393470 101550011511 135400015348 156230786940 169250019185 203100023022 338500038370 406200046044 507750057555 677000076740 1015500115110 2031000230220