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8305830638 = 276111386069
BaseRepresentation
bin1111011110001000…
…01110101011101110
3210102211212220122222
413233010032223232
5114002243040023
63452102435342
7412553252450
oct75704165356
923384786588
108305830638
113582474546
121739732b52
13a24a02ab1
1458b1582d0
153392abcc8
hex1ef10eaee

8305830638 has 32 divisors (see below), whose sum is σ = 14600226240. Its totient is φ = 3470261760.

The previous prime is 8305830619. The next prime is 8305830649. The reversal of 8305830638 is 8360385038.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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, 53468 + ... + 139536.

It is an arithmetic number, because the mean of its divisors is an integer number (456257070).

Almost surely, 28305830638 is an apocalyptic number.

8305830638 is a deficient number, since it is larger than the sum of its proper divisors (6294395602).

8305830638 is a wasteful number, since it uses less digits than its factorization.

8305830638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86252.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 8305830638 is about 91136.3299568290. The cubic root of 8305830638 is about 2025.1678477342.

The spelling of 8305830638 in words is "eight billion, three hundred five million, eight hundred thirty thousand, six hundred thirty-eight".

Divisors: 1 2 7 14 61 113 122 226 427 791 854 1582 6893 13786 48251 86069 96502 172138 602483 1204966 5250209 9725797 10500418 19451594 36751463 68080579 73502926 136161158 593273617 1186547234 4152915319 8305830638