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213130223300 = 22527329195921
BaseRepresentation
bin1100011001111110001…
…1010001111011000100
3202101010102010010202002
43012133203101323010
511442442314121200
6241524412204432
721253365002261
oct3063743217304
9671112103662
10213130223300
118242a500315
1235380a69718
1317137687187
14a45bc68268
15582604abd5
hex319f8d1ec4

213130223300 has 36 divisors (see below), whose sum is σ = 468828115476. Its totient is φ = 84084249600.

The previous prime is 213130223279. The next prime is 213130223321. The reversal of 213130223300 is 3322031312.

It is an interprime number because it is at equal distance from previous prime (213130223279) and next prime (213130223321).

It can be written as a sum of positive squares in 6 ways, for example, as 53816896 + 213076406404 = 7336^2 + 461602^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14590661 + ... + 14605260.

Almost surely, 2213130223300 is an apocalyptic number.

213130223300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213130223300 is an abundant number, since it is smaller than the sum of its proper divisors (255697892176).

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

213130223300 is a wasteful number, since it uses less digits than its factorization.

213130223300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29196008 (or 29196001 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 213130223300 its reverse (3322031312), we get a palindrome (216452254612).

The spelling of 213130223300 in words is "two hundred thirteen billion, one hundred thirty million, two hundred twenty-three thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 73 100 146 292 365 730 1460 1825 3650 7300 29195921 58391842 116783684 145979605 291959210 583918420 729898025 1459796050 2131302233 2919592100 4262604466 8525208932 10656511165 21313022330 42626044660 53282555825 106565111650 213130223300