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2206312960 = 2953723293
BaseRepresentation
bin1000001110000001…
…1010101000000000
312200202120022101211
42003200122220000
514004304003320
61002532535504
7105450231205
oct20340325000
95622508354
102206312960
11a32451645
12516a81594
13292131c37
1416d041cac
15cda6755a
hex8381aa00

2206312960 has 80 divisors (see below), whose sum is σ = 5433185736. Its totient is φ = 858636288.

The previous prime is 2206312957. The next prime is 2206312967. The reversal of 2206312960 is 692136022.

It can be written as a sum of positive squares in 4 ways, for example, as 1621833984 + 584478976 = 40272^2 + 24176^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206312967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83074 + ... + 106366.

Almost surely, 22206312960 is an apocalyptic number.

2206312960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2206312960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2716592868).

2206312960 is an abundant number, since it is smaller than the sum of its proper divisors (3226872776).

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

2206312960 is an equidigital number, since it uses as much as digits as its factorization.

2206312960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23353 (or 23337 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2206312960 is about 46971.4057698937. The cubic root of 2206312960 is about 1301.8342863635.

Adding to 2206312960 its reverse (692136022), we get a palindrome (2898448982).

The spelling of 2206312960 in words is "two billion, two hundred six million, three hundred twelve thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 37 40 64 74 80 128 148 160 185 256 296 320 370 512 592 640 740 1184 1280 1480 2368 2560 2960 4736 5920 9472 11840 18944 23293 23680 46586 47360 93172 94720 116465 186344 232930 372688 465860 745376 861841 931720 1490752 1723682 1863440 2981504 3447364 3726880 4309205 5963008 6894728 7453760 8618410 11926016 13789456 14907520 17236820 27578912 29815040 34473640 55157824 59630080 68947280 110315648 137894560 220631296 275789120 441262592 551578240 1103156480 2206312960