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213200310020 = 225139186741077
BaseRepresentation
bin1100011010001110111…
…0101000111100000100
3202101022021222220122112
43012203232220330010
511443113234410040
6241535354320152
721255205506605
oct3064356507404
9671267886575
10213200310020
1182466020525
12353a0429058
13171490562c9
14a4672addac
15582c292365
hex31a3ba8f04

213200310020 has 48 divisors (see below), whose sum is σ = 451194179520. Its totient is φ = 84619188864.

The previous prime is 213200310013. The next prime is 213200310049. The reversal of 213200310020 is 20013002312.

It is a happy number.

It is a super-2 number, since 2×2132003100202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213200309977 and 213200310004.

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, 5169722 + ... + 5210798.

It is an arithmetic number, because the mean of its divisors is an integer number (9399878740).

Almost surely, 2213200310020 is an apocalyptic number.

213200310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213200310020 is an abundant number, since it is smaller than the sum of its proper divisors (237993869500).

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

213200310020 is a wasteful number, since it uses less digits than its factorization.

213200310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43092 (or 43090 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 213200310020 its reverse (20013002312), we get a palindrome (233213312332).

The spelling of 213200310020 in words is "two hundred thirteen billion, two hundred million, three hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 1867 2780 3734 7468 9335 18670 37340 41077 82154 164308 205385 259513 410770 519026 821540 1038052 1297565 2595130 5190260 5709703 11419406 22838812 28548515 57097030 76690759 114194060 153381518 306763036 383453795 766907590 1533815180 10660015501 21320031002 42640062004 53300077505 106600155010 213200310020