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203302020 = 22356155547
BaseRepresentation
bin11000001111000…
…10010010000100
3112011112210221110
430013202102010
5404021131040
632101245020
75016016155
oct1407422204
9464483843
10203302020
11a48388a9
1258103770
133317226c
141d00192c
1512cac980
hexc1e2484

203302020 has 48 divisors (see below), whose sum is σ = 578587968. Its totient is φ = 53324160.

The previous prime is 203301983. The next prime is 203302049. The reversal of 203302020 is 20203302.

It is a super-2 number, since 2×2033020202 = 82663422672160800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 203301987 and 203302005.

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, 24114 + ... + 31433.

It is an arithmetic number, because the mean of its divisors is an integer number (12053916).

Almost surely, 2203302020 is an apocalyptic number.

203302020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203302020 is an abundant number, since it is smaller than the sum of its proper divisors (375285948).

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

203302020 is a wasteful number, since it uses less digits than its factorization.

203302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55620 (or 55618 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 203302020 is about 14258.4017337148. The cubic root of 203302020 is about 588.0043847144.

Adding to 203302020 its reverse (20203302), we get a palindrome (223505322).

The spelling of 203302020 in words is "two hundred three million, three hundred two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 61 122 183 244 305 366 610 732 915 1220 1830 3660 55547 111094 166641 222188 277735 333282 555470 666564 833205 1110940 1666410 3332820 3388367 6776734 10165101 13553468 16941835 20330202 33883670 40660404 50825505 67767340 101651010 203302020