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13183040 = 265133169
BaseRepresentation
bin110010010010…
…100001000000
3220210202201202
4302102201000
511333324130
61150320332
7220024343
oct62224100
926722652
1013183040
117494682
1244b90a8
132967620
141a7245a
151256145
hexc92840

13183040 has 56 divisors (see below), whose sum is σ = 33817560. Its totient is φ = 4866048.

The previous prime is 13183039. The next prime is 13183057. The reversal of 13183040 is 4038131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1183744 + 11999296 = 1088^2 + 3464^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2576 + ... + 5744.

It is an arithmetic number, because the mean of its divisors is an integer number (603885).

Almost surely, 213183040 is an apocalyptic number.

13183040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13183040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16908780).

13183040 is an abundant number, since it is smaller than the sum of its proper divisors (20634520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13183040 is a wasteful number, since it uses less digits than its factorization.

13183040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3199 (or 3189 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 13183040 is about 3630.8456315299. The cubic root of 13183040 is about 236.2318892829.

The spelling of 13183040 in words is "thirteen million, one hundred eighty-three thousand, forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 130 160 208 260 320 416 520 832 1040 2080 3169 4160 6338 12676 15845 25352 31690 41197 50704 63380 82394 101408 126760 164788 202816 205985 253520 329576 411970 507040 659152 823940 1014080 1318304 1647880 2636608 3295760 6591520 13183040