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5309879780 = 225265493989
BaseRepresentation
bin1001111000111111…
…00101010111100100
3111201001110211201002
410330133211113210
541333312123110
62234521052432
7245404143032
oct47437452744
914631424632
105309879780
11228531a2a7
121042327118
136681085ca
143852c7552
15211267aa5
hex13c7e55e4

5309879780 has 12 divisors (see below), whose sum is σ = 11150747580. Its totient is φ = 2123951904.

The previous prime is 5309879683. The next prime is 5309879803. The reversal of 5309879780 is 879789035.

It can be written as a sum of positive squares in 2 ways, for example, as 2283119524 + 3026760256 = 47782^2 + 55016^2 .

It is a super-3 number, since 3×53098797803 (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132746975 + ... + 132747014.

It is an arithmetic number, because the mean of its divisors is an integer number (929228965).

Almost surely, 25309879780 is an apocalyptic number.

It is an amenable number.

5309879780 is an abundant number, since it is smaller than the sum of its proper divisors (5840867800).

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

5309879780 is a wasteful number, since it uses less digits than its factorization.

5309879780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265493998 (or 265493996 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 56.

The square root of 5309879780 is about 72868.9219077653. The cubic root of 5309879780 is about 1744.5960953833.

The spelling of 5309879780 in words is "five billion, three hundred nine million, eight hundred seventy-nine thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 265493989 530987978 1061975956 1327469945 2654939890 5309879780