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10212316220 = 2256122337537
BaseRepresentation
bin10011000001011001…
…11001010000111100
3222100201021102020002
421200230321100330
5131403323104340
64405205213432
7511033153451
oct114054712074
928321242202
1010212316220
11437064a367
121b90101278
13c69997682
146cc42d828
153eb84b715
hex260b3943c

10212316220 has 48 divisors (see below), whose sum is σ = 21895765248. Its totient is φ = 3999836160.

The previous prime is 10212316217. The next prime is 10212316229. The reversal of 10212316220 is 2261321201.

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

It is a junction number, because it is equal to n+sod(n) for n = 10212316192 and 10212316201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212316229) 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, 253292 + ... + 290828.

It is an arithmetic number, because the mean of its divisors is an integer number (456161776).

Almost surely, 210212316220 is an apocalyptic number.

10212316220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212316220 is an abundant number, since it is smaller than the sum of its proper divisors (11683449028).

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

10212316220 is a wasteful number, since it uses less digits than its factorization.

10212316220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37830 (or 37828 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10212316220 its reverse (2261321201), we get a palindrome (12473637421).

The spelling of 10212316220 in words is "ten billion, two hundred twelve million, three hundred sixteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 223 244 305 446 610 892 1115 1220 2230 4460 13603 27206 37537 54412 68015 75074 136030 150148 187685 272060 375370 750740 2289757 4579514 8370751 9159028 11448785 16741502 22897570 33483004 41853755 45795140 83707510 167415020 510615811 1021231622 2042463244 2553079055 5106158110 10212316220