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255001250020 = 225115321869747
BaseRepresentation
bin1110110101111101000…
…0100100100011100100
3220101012110211200101111
43231133100210203210
513134220310000040
6313051305434404
724265111601416
oct3553720444344
9811173750344
10255001250020
1199166615430
124150749ba04
131b07b26772a
14c4b0b1a9b6
156976e1adea
hex3b5f4248e4

255001250020 has 48 divisors (see below), whose sum is σ = 595207061568. Its totient is φ = 90978143360.

The previous prime is 255001249991. The next prime is 255001250029. The reversal of 255001250020 is 20052100552.

255001250020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 255001249973 and 255001250000.

It is not an unprimeable number, because it can be changed into a prime (255001250029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10923214 + ... + 10946533.

It is an arithmetic number, because the mean of its divisors is an integer number (12400147116).

Almost surely, 2255001250020 is an apocalyptic number.

255001250020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255001250020 is an abundant number, since it is smaller than the sum of its proper divisors (340205811548).

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

255001250020 is a wasteful number, since it uses less digits than its factorization.

255001250020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21869820 (or 21869818 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

Adding to 255001250020 its reverse (20052100552), we get a palindrome (275053350572).

The spelling of 255001250020 in words is "two hundred fifty-five billion, one million, two hundred fifty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 53 55 106 110 212 220 265 530 583 1060 1166 2332 2915 5830 11660 21869747 43739494 87478988 109348735 218697470 240567217 437394940 481134434 962268868 1159096591 1202836085 2318193182 2405672170 4636386364 4811344340 5795482955 11590965910 12750062501 23181931820 25500125002 51000250004 63750312505 127500625010 255001250020