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20212033230 = 23251312696373
BaseRepresentation
bin10010110100101110…
…110010011011001110
31221011121111200011100
4102310232302123032
5312343240030410
613141342003530
71313605306404
oct226456623316
957147450140
1020212033230
1186321907a4
123b00b765a6
131ba15b609c
14d9a51b474
157d46a08c0
hex4b4bb26ce

20212033230 has 96 divisors (see below), whose sum is σ = 53157630240. Its totient is φ = 5328011520.

The previous prime is 20212033223. The next prime is 20212033321. The reversal of 20212033230 is 3233021202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3168324 + ... + 3174696.

It is an arithmetic number, because the mean of its divisors is an integer number (553725315).

Almost surely, 220212033230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20212033230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26578815120).

20212033230 is an abundant number, since it is smaller than the sum of its proper divisors (32945597010).

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

20212033230 is a wasteful number, since it uses less digits than its factorization.

20212033230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6786 (or 6783 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20212033230 its reverse (3233021202), we get a palindrome (23445054432).

The spelling of 20212033230 in words is "twenty billion, two hundred twelve million, thirty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 131 262 269 393 538 655 786 807 1179 1310 1345 1614 1965 2358 2421 2690 3930 4035 4842 5895 6373 8070 11790 12105 12746 19119 24210 31865 35239 38238 57357 63730 70478 95595 105717 114714 176195 191190 211434 286785 317151 352390 528585 573570 634302 834863 1057170 1585755 1669726 1714337 2504589 3171510 3428674 4174315 5009178 5143011 7513767 8348630 8571685 10286022 12522945 15027534 15429033 17143370 25045890 25715055 30858066 37568835 51430110 75137670 77145165 154290330 224578147 449156294 673734441 1122890735 1347468882 2021203323 2245781470 3368672205 4042406646 6737344410 10106016615 20212033230