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213230111332 = 22771911878923
BaseRepresentation
bin1100011010010110000…
…0010100101001100100
3202101101101001222100211
43012211200110221210
511443143402030312
6241542341145204
721256020020110
oct3064540245144
9671341058324
10213230111332
1182480925707
12353aa3bb204
131715228ba14
14a46b22a740
15582ebcc3a7
hex31a5814a64

213230111332 has 48 divisors (see below), whose sum is σ = 427461027840. Its totient is φ = 91170135072.

The previous prime is 213230111329. The next prime is 213230111333. The reversal of 213230111332 is 233111032312.

It is a super-2 number, since 2×2132301113322 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213230111333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23892223 + ... + 23901145.

It is an arithmetic number, because the mean of its divisors is an integer number (8905438080).

Almost surely, 2213230111332 is an apocalyptic number.

It is an amenable number.

213230111332 is an abundant number, since it is smaller than the sum of its proper divisors (214230916508).

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

213230111332 is a wasteful number, since it uses less digits than its factorization.

213230111332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10840 (or 10838 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213230111332 its reverse (233111032312), we get a palindrome (446341143644).

The spelling of 213230111332 in words is "two hundred thirteen billion, two hundred thirty million, one hundred eleven thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 719 1187 1438 2374 2876 4748 5033 8309 8923 10066 16618 17846 20132 33236 35692 62461 124922 249844 853453 1706906 3413812 5974171 6415637 10591601 11948342 12831274 21183202 23896684 25662548 42366404 44909459 74141207 89818918 148282414 179637836 296564828 7615361119 15230722238 30461444476 53307527833 106615055666 213230111332