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143069808 = 24372591031
BaseRepresentation
bin10001000011100…
…01001001110000
3100222012200212210
420201301021300
5243111213213
622110252120
73355034100
oct1041611160
9328180783
10143069808
1173839512
123bab7040
13238436bb
1415003200
15c8610c3
hex8871270

143069808 has 120 divisors (see below), whose sum is σ = 437650560. Its totient is φ = 40145280.

The previous prime is 143069779. The next prime is 143069813. The reversal of 143069808 is 808960341.

It is a super-2 number, since 2×1430698082 = 40937939922313728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138253 + ... + 139283.

It is an arithmetic number, because the mean of its divisors is an integer number (3647088).

Almost surely, 2143069808 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 143069808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218825280).

143069808 is an abundant number, since it is smaller than the sum of its proper divisors (294580752).

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

143069808 is a wasteful number, since it uses less digits than its factorization.

143069808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 143069808 is about 11961.1792060816. The cubic root of 143069808 is about 523.0172322180.

The spelling of 143069808 in words is "one hundred forty-three million, sixty-nine thousand, eight hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 59 84 98 112 118 147 168 177 196 236 294 336 354 392 413 472 588 708 784 826 944 1031 1176 1239 1416 1652 2062 2352 2478 2832 2891 3093 3304 4124 4956 5782 6186 6608 7217 8248 8673 9912 11564 12372 14434 16496 17346 19824 21651 23128 24744 28868 34692 43302 46256 49488 50519 57736 60829 69384 86604 101038 115472 121658 138768 151557 173208 182487 202076 243316 303114 346416 364974 404152 425803 486632 606228 729948 808304 851606 973264 1212456 1277409 1459896 1703212 2424912 2554818 2919792 2980621 3406424 5109636 5961242 6812848 8941863 10219272 11922484 17883726 20438544 23844968 35767452 47689936 71534904 143069808