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10809974 = 271940639
BaseRepresentation
bin101001001111…
…001001110110
3202100012111102
4221033021312
510231404344
61023410102
7160611650
oct51171166
922305442
1010809974
11611376a
123753932
132316446
1416156d0
15e37e4e
hexa4f276

10809974 has 16 divisors (see below), whose sum is σ = 19507200. Its totient is φ = 4388904.

The previous prime is 10809961. The next prime is 10810001. The reversal of 10809974 is 47990801.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20054 + ... + 20585.

It is an arithmetic number, because the mean of its divisors is an integer number (1219200).

Almost surely, 210809974 is an apocalyptic number.

10809974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10809974 is a deficient number, since it is larger than the sum of its proper divisors (8697226).

10809974 is a wasteful number, since it uses less digits than its factorization.

10809974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40667.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 10809974 is about 3287.8524906084. The cubic root of 10809974 is about 221.1099144083.

The spelling of 10809974 in words is "ten million, eight hundred nine thousand, nine hundred seventy-four".

Divisors: 1 2 7 14 19 38 133 266 40639 81278 284473 568946 772141 1544282 5404987 10809974