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20031042200424 = 23312791581741257
BaseRepresentation
bin1001000110111110101110…
…01001111010001101101000
32121220221121202211200020120
410203133113021322031220
510111142033300403144
6110334044520123240
74135123620252633
oct443372711721550
977827552750216
1020031042200424
116423132128732
1222b6197606520
13b23bc4570278
144d3716c7ac1a
1524b0c0229e19
hex1237d727a368

20031042200424 has 64 divisors (see below), whose sum is σ = 50121142579200. Its totient is φ = 6671210056704.

The previous prime is 20031042200413. The next prime is 20031042200503. The reversal of 20031042200424 is 42400224013002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20031042200394 and 20031042200403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485498004 + ... + 485539260.

It is an arithmetic number, because the mean of its divisors is an integer number (783142852800).

Almost surely, 220031042200424 is an apocalyptic number.

20031042200424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20031042200424 is an abundant number, since it is smaller than the sum of its proper divisors (30090100378776).

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

20031042200424 is a wasteful number, since it uses less digits than its factorization.

20031042200424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58362 (or 58358 counting only the distinct ones).

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

Adding to 20031042200424 its reverse (42400224013002), we get a palindrome (62431266213426).

The spelling of 20031042200424 in words is "twenty trillion, thirty-one billion, forty-two million, two hundred thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 24 1279 2558 3837 5116 7674 10232 15348 15817 30696 31634 41257 47451 63268 82514 94902 123771 126536 165028 189804 247542 330056 379608 495084 990168 20229943 40459886 52767703 60689829 80919772 105535406 121379658 158303109 161839544 211070812 242759316 316606218 422141624 485518632 633212436 652561969 1266424872 1305123938 1957685907 2610247876 3915371814 5220495752 7830743628 15661487256 834626758351 1669253516702 2503880275053 3338507033404 5007760550106 6677014066808 10015521100212 20031042200424