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753489380 = 225723323099
BaseRepresentation
bin101100111010010…
…101010111100100
31221111211020010002
4230322111113210
53020343130010
6202433520432
724446361020
oct5472252744
91844736102
10753489380
113573637a6
12190413118
13c0149b07
14720dd380
154623b1a5
hex2ce955e4

753489380 has 48 divisors (see below), whose sum is σ = 1816214400. Its totient is φ = 257219328.

The previous prime is 753489377. The next prime is 753489389. The reversal of 753489380 is 83984357.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (753489389) 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, 21071 + ... + 44169.

It is an arithmetic number, because the mean of its divisors is an integer number (37837800).

Almost surely, 2753489380 is an apocalyptic number.

753489380 is a gapful number since it is divisible by the number (70) 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 753489380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908107200).

753489380 is an abundant number, since it is smaller than the sum of its proper divisors (1062725020).

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

753489380 is a wasteful number, since it uses less digits than its factorization.

753489380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23348 (or 23346 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 753489380 is about 27449.7610189961. The cubic root of 753489380 is about 909.9671444886.

The spelling of 753489380 in words is "seven hundred fifty-three million, four hundred eighty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 233 466 932 1165 1631 2330 3262 4660 6524 8155 16310 23099 32620 46198 92396 115495 161693 230990 323386 461980 646772 808465 1616930 3233860 5382067 10764134 21528268 26910335 37674469 53820670 75348938 107641340 150697876 188372345 376744690 753489380