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13040973 = 3311192311
BaseRepresentation
bin110001101111…
…110101001101
3220112112212000
4301233311031
511314302343
61143302513
7215563221
oct61576515
926475760
1013040973
1173a7970
12444aa39
132917a6a
141a36781
151228ed3
hexc6fd4d

13040973 has 32 divisors (see below), whose sum is σ = 22195200. Its totient is φ = 7484400.

The previous prime is 13040959. The next prime is 13041001. The reversal of 13040973 is 37904031.

It is not a de Polignac number, because 13040973 - 24 = 13040957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13040273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4488 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (693600).

Almost surely, 213040973 is an apocalyptic number.

It is an amenable number.

13040973 is a deficient number, since it is larger than the sum of its proper divisors (9154227).

13040973 is a wasteful number, since it uses less digits than its factorization.

13040973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350 (or 2344 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 13040973 is about 3611.2287382552. The cubic root of 13040973 is about 235.3802385103.

The spelling of 13040973 in words is "thirteen million, forty thousand, nine hundred seventy-three".

Divisors: 1 3 9 11 19 27 33 57 99 171 209 297 513 627 1881 2311 5643 6933 20799 25421 43909 62397 76263 131727 228789 395181 482999 686367 1185543 1448997 4346991 13040973