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537287840 = 2558833803
BaseRepresentation
bin100000000001100…
…101110010100000
31101110000001100122
4200001211302200
52100021202330
6125151535412
716212604565
oct4001456240
91343001318
10537287840
11256315341
1212bb2a568
138740c2cb
145150086c
15322815e5
hex20065ca0

537287840 has 48 divisors (see below), whose sum is σ = 1271114208. Its totient is φ = 214615296.

The previous prime is 537287813. The next prime is 537287857. The reversal of 537287840 is 48782735.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 537287791 and 537287800.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139379 + ... + 143181.

It is an arithmetic number, because the mean of its divisors is an integer number (26481546).

Almost surely, 2537287840 is an apocalyptic number.

It is an amenable number.

537287840 is an abundant number, since it is smaller than the sum of its proper divisors (733826368).

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

537287840 is a wasteful number, since it uses less digits than its factorization.

537287840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4701 (or 4693 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 537287840 is about 23179.4702269055. The cubic root of 537287840 is about 812.9596748783.

The spelling of 537287840 in words is "five hundred thirty-seven million, two hundred eighty-seven thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 883 1766 3532 3803 4415 7064 7606 8830 14128 15212 17660 19015 28256 30424 35320 38030 60848 70640 76060 121696 141280 152120 304240 608480 3358049 6716098 13432196 16790245 26864392 33580490 53728784 67160980 107457568 134321960 268643920 537287840