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2031242220420 = 2235713813502021
BaseRepresentation
bin11101100011101111011…
…110001001001110000100
321012011222202121002101220
4131203233132021032010
5231234441002023140
64153050110120340
7266516034665550
oct35435736111604
97164882532356
102031242220420
11713499308466
12289802ab00b0
131197120b402a
1470453c98860
1537c85bd1bd0
hex1d8ef789384

2031242220420 has 96 divisors (see below), whose sum is σ = 6504683678976. Its totient is φ = 463947609600.

The previous prime is 2031242220419. The next prime is 2031242220431. The reversal of 2031242220420 is 240222421302.

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, 1170991 + ... + 2331030.

It is an arithmetic number, because the mean of its divisors is an integer number (67757121656).

Almost surely, 22031242220420 is an apocalyptic number.

2031242220420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031242220420 is an abundant number, since it is smaller than the sum of its proper divisors (4473441458556).

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

2031242220420 is a wasteful number, since it uses less digits than its factorization.

2031242220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503421 (or 3503419 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 2031242220420 its reverse (240222421302), we get a palindrome (2271464641722).

The spelling of 2031242220420 in words is "two trillion, thirty-one billion, two hundred forty-two million, two hundred twenty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 1381 2762 4143 5524 6905 8286 9667 13810 16572 19334 20715 27620 29001 38668 41430 48335 58002 82860 96670 116004 145005 193340 290010 580020 3502021 7004042 10506063 14008084 17510105 21012126 24514147 35020210 42024252 49028294 52530315 70040420 73542441 98056588 105060630 122570735 147084882 210121260 245141470 294169764 367712205 490282940 735424410 1470848820 4836291001 9672582002 14508873003 19345164004 24181455005 29017746006 33854037007 48362910010 58035492012 67708074014 72544365015 96725820020 101562111021 135416148028 145088730030 169270185035 203124222042 290177460060 338540370070 406248444084 507810555105 677080740140 1015621110210 2031242220420