Search a number
-
+
7243747146272 = 257132487550531
BaseRepresentation
bin110100101101001000011…
…1110011011101000100000
3221122111101012012221201102
41221122100332123220200
51422140143232140042
623223422000453532
71345225543552550
oct151322076335040
927574335187642
107243747146272
112343068468a8a
1298ba7831a2a8
1340710c11a170
141b0856419160
15c865e5d5b32
hex69690f9ba20

7243747146272 has 48 divisors (see below), whose sum is σ = 17552156553792. Its totient is φ = 2865658210560.

The previous prime is 7243747146241. The next prime is 7243747146281. The reversal of 7243747146272 is 2726417473427.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 1243772354 + ... + 1243778177.

It is an arithmetic number, because the mean of its divisors is an integer number (365669928204).

Almost surely, 27243747146272 is an apocalyptic number.

It is an amenable number.

7243747146272 is an abundant number, since it is smaller than the sum of its proper divisors (10308409407520).

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

7243747146272 is a wasteful number, since it uses less digits than its factorization.

7243747146272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487550561 (or 2487550553 counting only the distinct ones).

The product of its digits is 22127616, while the sum is 56.

The spelling of 7243747146272 in words is "seven trillion, two hundred forty-three billion, seven hundred forty-seven million, one hundred forty-six thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 91 104 112 182 208 224 364 416 728 1456 2912 2487550531 4975101062 9950202124 17412853717 19900404248 32338156903 34825707434 39800808496 64676313806 69651414868 79601616992 129352627612 139302829736 226367098321 258705255224 278605659472 452734196642 517410510448 557211318944 905468393284 1034821020896 1810936786568 3621873573136 7243747146272