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20334323120 = 2456717321929
BaseRepresentation
bin10010111100000001…
…010010010110110000
31221111010121122100112
4102330001102112300
5313121041314440
613201431040452
71316621615606
oct227401222660
957433548315
1020334323120
118695216a21
123b35b10128
131bc0a32377
14dac871876
157e02a9965
hex4bc0525b0

20334323120 has 80 divisors (see below), whose sum is σ = 48262491360. Its totient is φ = 7965652992.

The previous prime is 20334323081. The next prime is 20334323129. The reversal of 20334323120 is 2132343302.

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

It is not an unprimeable number, because it can be changed into a prime (20334323129) 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, 916316 + ... + 938244.

It is an arithmetic number, because the mean of its divisors is an integer number (603281142).

Almost surely, 220334323120 is an apocalyptic number.

20334323120 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 20334323120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24131245680).

20334323120 is an abundant number, since it is smaller than the sum of its proper divisors (27928168240).

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

20334323120 is a wasteful number, since it uses less digits than its factorization.

20334323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22182 (or 22176 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20334323120 its reverse (2132343302), we get a palindrome (22466666422).

The spelling of 20334323120 in words is "twenty billion, three hundred thirty-four million, three hundred twenty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 67 80 134 173 268 335 346 536 670 692 865 1072 1340 1384 1730 2680 2768 3460 5360 6920 11591 13840 21929 23182 43858 46364 57955 87716 92728 109645 115910 175432 185456 219290 231820 350864 438580 463640 877160 927280 1469243 1754320 2938486 3793717 5876972 7346215 7587434 11753944 14692430 15174868 18968585 23507888 29384860 30349736 37937170 58769720 60699472 75874340 117539440 151748680 254179039 303497360 508358078 1016716156 1270895195 2033432312 2541790390 4066864624 5083580780 10167161560 20334323120