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203002131003020 = 225472083103677251
BaseRepresentation
bin101110001010000100011101…
…111010000011011010001100
3222121202210222112202111121022
4232022010131322003122030
5203101441331014044040
61555425520323453312
760521264022642446
oct5612043572033214
9877683875674538
10203002131003020
11597567a1773148
121a92720ab27238
1389370324432cb
14381b4d9957496
1518708409216b5
hexb8a11de8368c

203002131003020 has 48 divisors (see below), whose sum is σ = 435583800626688. Its totient is φ = 79435020696000.

The previous prime is 203002131003013. The next prime is 203002131003043. The reversal of 203002131003020 is 20300131200302.

It is a self number, because there is not a number n which added to its sum of digits gives 203002131003020.

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, 49880606 + ... + 53796645.

It is an arithmetic number, because the mean of its divisors is an integer number (9074662513056).

Almost surely, 2203002131003020 is an apocalyptic number.

203002131003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203002131003020 is an abundant number, since it is smaller than the sum of its proper divisors (232581669623668).

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

203002131003020 is a wasteful number, since it uses less digits than its factorization.

203002131003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103679390 (or 103679388 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 203002131003020 its reverse (20300131200302), we get a palindrome (223302262203322).

The spelling of 203002131003020 in words is "two hundred three trillion, two billion, one hundred thirty-one million, three thousand, twenty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 2083 4166 8332 10415 20830 41660 97901 195802 391604 489505 979010 1958020 103677251 207354502 414709004 518386255 1036772510 2073545020 4872830797 9745661594 19491323188 24364153985 48728307970 97456615940 215959713833 431919427666 863838855332 1079798569165 2159597138330 4319194276660 10150106550151 20300213100302 40600426200604 50750532750755 101501065501510 203002131003020