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200310020 = 22515763793
BaseRepresentation
bin10111111000001…
…11110100000100
3111221220210200122
423330013310010
5402234410040
631513201112
74651415141
oct1374076404
9457823618
10200310020
11a3084979
1257100198
1332665451
141c8633c8
15128bb1b5
hexbf07d04

200310020 has 24 divisors (see below), whose sum is σ = 423336984. Its totient is φ = 79612416.

The previous prime is 200309999. The next prime is 200310023. The reversal of 200310020 is 20013002.

200310020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 53027524 + 147282496 = 7282^2 + 12136^2 .

It is a super-2 number, since 2×2003100202 = 80248208224800800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (200310023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28757 + ... + 35036.

It is an arithmetic number, because the mean of its divisors is an integer number (17639041).

Almost surely, 2200310020 is an apocalyptic number.

200310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200310020 is an abundant number, since it is smaller than the sum of its proper divisors (223026964).

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

200310020 is a wasteful number, since it uses less digits than its factorization.

200310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63959 (or 63957 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 200310020 is about 14153.0922416269. The cubic root of 200310020 is about 585.1055596398.

Adding to 200310020 its reverse (20013002), we get a palindrome (220323022).

The spelling of 200310020 in words is "two hundred million, three hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 3140 63793 127586 255172 318965 637930 1275860 10015501 20031002 40062004 50077505 100155010 200310020