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528067840 = 2851632531
BaseRepresentation
bin11111011110011…
…010110100000000
31100210122121220011
4133132122310000
52040141132330
6124222154304
716041334246
oct3736326400
91323577804
10528067840
11251098203
12128a22994
13855317a1
14501c0796
153155e82a
hex1f79ad00

528067840 has 72 divisors (see below), whose sum is σ = 1273150368. Its totient is φ = 209848320.

The previous prime is 528067807. The next prime is 528067843. The reversal of 528067840 is 48760825.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 528067793 and 528067802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528067843) 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, 207375 + ... + 209905.

It is an arithmetic number, because the mean of its divisors is an integer number (17682644).

Almost surely, 2528067840 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 528067840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636575184).

528067840 is an abundant number, since it is smaller than the sum of its proper divisors (745082528).

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

528067840 is a wasteful number, since it uses less digits than its factorization.

528067840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715 (or 2701 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 528067840 is about 22979.7267172610. The cubic root of 528067840 is about 808.2826185161.

The spelling of 528067840 in words is "five hundred twenty-eight million, sixty-seven thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 163 256 320 326 640 652 815 1280 1304 1630 2531 2608 3260 5062 5216 6520 10124 10432 12655 13040 20248 20864 25310 26080 40496 41728 50620 52160 80992 101240 104320 161984 202480 208640 323968 404960 412553 647936 809920 825106 1619840 1650212 2062765 3239680 3300424 4125530 6600848 8251060 13201696 16502120 26403392 33004240 52806784 66008480 105613568 132016960 264033920 528067840