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12428834858 = 2112146726317
BaseRepresentation
bin10111001001101000…
…01111100000101010
31012002012001020011222
423210310033200222
5200423240203413
65413145022042
7616666232066
oct134464174052
935065036158
1012428834858
1152a8831650
1224aa484922
131230c6096b
1485c96aaa6
154cb22cb08
hex2e4d0f82a

12428834858 has 16 divisors (see below), whose sum is σ = 20339813664. Its totient is φ = 5648992560.

The previous prime is 12428834839. The next prime is 12428834879. The reversal of 12428834858 is 85843882421.

It is a happy number.

It is a Curzon number.

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, 459116 + ... + 485432.

It is an arithmetic number, because the mean of its divisors is an integer number (1271238354).

Almost surely, 212428834858 is an apocalyptic number.

12428834858 is a deficient number, since it is larger than the sum of its proper divisors (7910978806).

12428834858 is a wasteful number, since it uses less digits than its factorization.

12428834858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47797.

The product of its digits is 3932160, while the sum is 53.

The spelling of 12428834858 in words is "twelve billion, four hundred twenty-eight million, eight hundred thirty-four thousand, eight hundred fifty-eight".

Divisors: 1 2 11 22 21467 26317 42934 52634 236137 289487 472274 578974 564947039 1129894078 6214417429 12428834858