Search a number
-
+
222881349912 = 233131889937799
BaseRepresentation
bin1100111110010011000…
…0111000000100011000
3210022021222120200202120
43033210300320010120
512122430111144122
6250220144501240
722050131133654
oct3174460700430
9708258520676
10222881349912
1186583791041
123724261a820
131802c937990
14ab04d25a64
155be714875c
hex33e4c38118

222881349912 has 64 divisors (see below), whose sum is σ = 600112800000. Its totient is φ = 68573433984.

The previous prime is 222881349857. The next prime is 222881349913. The reversal of 222881349912 is 219943188222.

It is a super-2 number, since 2×2228813499122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222881349913) 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, 5877589 + ... + 5915387.

It is an arithmetic number, because the mean of its divisors is an integer number (9376762500).

Almost surely, 2222881349912 is an apocalyptic number.

It is an amenable number.

222881349912 is an abundant number, since it is smaller than the sum of its proper divisors (377231450088).

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

222881349912 is a wasteful number, since it uses less digits than its factorization.

222881349912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56720 (or 56716 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The spelling of 222881349912 in words is "two hundred twenty-two billion, eight hundred eighty-one million, three hundred forty-nine thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 18899 37798 37799 56697 75596 75598 113394 113397 151192 151196 226788 226794 245687 302392 453576 453588 491374 491387 737061 907176 982748 982774 1474122 1474161 1965496 1965548 2948244 2948322 3931096 5896488 5896644 11793288 714363301 1428726602 2143089903 2857453204 4286179806 5714906408 8572359612 9286722913 17144719224 18573445826 27860168739 37146891652 55720337478 74293783304 111440674956 222881349912