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4991746682 = 213971979281
BaseRepresentation
bin1001010011000100…
…00000001001111010
3110212212212000010202
410221202000021322
540210341343212
62143154242202
7234462101216
oct45142001172
913785760122
104991746682
11213179018a
12b73886362
1361722c080
14354d53946
151e33760c2
hex12988027a

4991746682 has 16 divisors (see below), whose sum is σ = 8146724712. Its totient is φ = 2280130560.

The previous prime is 4991746673. The next prime is 4991746729. The reversal of 4991746682 is 2866471994.

It can be written as a sum of positive squares in 4 ways, for example, as 3202541281 + 1789205401 = 56591^2 + 42299^2 .

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, 987119 + ... + 992162.

Almost surely, 24991746682 is an apocalyptic number.

4991746682 is a deficient number, since it is larger than the sum of its proper divisors (3154978030).

4991746682 is a wasteful number, since it uses less digits than its factorization.

4991746682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979393.

The product of its digits is 5225472, while the sum is 56.

The square root of 4991746682 is about 70652.2942444193. The cubic root of 4991746682 is about 1709.0345635002.

The spelling of 4991746682 in words is "four billion, nine hundred ninety-one million, seven hundred forty-six thousand, six hundred eighty-two".

Divisors: 1 2 13 26 97 194 1261 2522 1979281 3958562 25730653 51461306 191990257 383980514 2495873341 4991746682