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5281188744 = 2331364126407
BaseRepresentation
bin1001110101100100…
…01000101110001000
3111122001111012000010
410322302020232020
541303441014434
62232014111520
7244605235506
oct47262105610
914561435003
105281188744
1122701032a7
1210347ab5a0
136621a1370
14381579676
1520d99b9e9
hex13ac88b88

5281188744 has 64 divisors (see below), whose sum is σ = 14241306240. Its totient is φ = 1622384640.

The previous prime is 5281188733. The next prime is 5281188779. The reversal of 5281188744 is 4478811825.

It is a junction number, because it is equal to n+sod(n) for n = 5281188693 and 5281188702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186789 + ... + 213195.

It is an arithmetic number, because the mean of its divisors is an integer number (222520410).

Almost surely, 25281188744 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 5281188744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7120653120).

5281188744 is an abundant number, since it is smaller than the sum of its proper divisors (8960117496).

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

5281188744 is a wasteful number, since it uses less digits than its factorization.

5281188744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27070 (or 27066 counting only the distinct ones).

The product of its digits is 573440, while the sum is 48.

The square root of 5281188744 is about 72671.7878134287. The cubic root of 5281188744 is about 1741.4482090333.

The spelling of 5281188744 in words is "five billion, two hundred eighty-one million, one hundred eighty-eight thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 641 1282 1923 2564 3846 5128 7692 8333 15384 16666 24999 26407 33332 49998 52814 66664 79221 99996 105628 158442 199992 211256 316884 343291 633768 686582 1029873 1373164 2059746 2746328 4119492 8238984 16926887 33853774 50780661 67707548 101561322 135415096 203122644 220049531 406245288 440099062 660148593 880198124 1320297186 1760396248 2640594372 5281188744