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22000310144 = 27318962297
BaseRepresentation
bin10100011111010100…
…100001011110000000
32002210020110112220122
4110133110201132000
5330024034411034
614035022555412
71406121356621
oct243724413600
962706415818
1022000310144
11936a6686aa
12431ba38b68
1320c7c301c7
1410c9c21a48
1588b69062e
hex51f521780

22000310144 has 64 divisors (see below), whose sum is σ = 45751651200. Its totient is φ = 10525532160.

The previous prime is 22000310141. The next prime is 22000310191. The reversal of 22000310144 is 44101300022.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×220003101443 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000310141) 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, 322004 + ... + 384300.

It is an arithmetic number, because the mean of its divisors is an integer number (714869550).

Almost surely, 222000310144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22000310144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22875825600).

22000310144 is an abundant number, since it is smaller than the sum of its proper divisors (23751341056).

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

22000310144 is an equidigital number, since it uses as much as digits as its factorization.

22000310144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62431 (or 62419 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22000310144 its reverse (44101300022), we get a palindrome (66101610166).

The spelling of 22000310144 in words is "twenty-two billion, three hundred ten thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 31 32 62 64 89 124 128 178 248 356 496 712 992 1424 1984 2759 2848 3968 5518 5696 11036 11392 22072 44144 62297 88288 124594 176576 249188 353152 498376 996752 1931207 1993504 3862414 3987008 5544433 7724828 7974016 11088866 15449656 22177732 30899312 44355464 61798624 88710928 123597248 171877423 177421856 247194496 343754846 354843712 687509692 709687424 1375019384 2750038768 5500077536 11000155072 22000310144