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13258368 = 273217677
BaseRepresentation
bin110010100100…
…111010000000
3220221121001200
4302210322000
511343231433
61152101200
7220460064
oct62447200
926847050
1013258368
117536232
124534800
1329929b6
141a91aa4
15126d613
hexca4e80

13258368 has 96 divisors (see below), whose sum is σ = 40456260. Its totient is φ = 4153344.

The previous prime is 13258363. The next prime is 13258381. The reversal of 13258368 is 86385231.

13258368 is a `hidden beast` number, since 13 + 2 + 583 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10188864 + 3069504 = 3192^2 + 1752^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13258363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19246 + ... + 19922.

Almost surely, 213258368 is an apocalyptic number.

13258368 is a gapful number since it is divisible by the number (18) 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 13258368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20228130).

13258368 is an abundant number, since it is smaller than the sum of its proper divisors (27197892).

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

13258368 is a wasteful number, since it uses less digits than its factorization.

13258368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 699 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 13258368 is about 3641.2041964163. The cubic root of 13258368 is about 236.6809786580.

It can be divided in two parts, 132583 and 68, that added together give a cube (132651 = 513).

The spelling of 13258368 in words is "thirteen million, two hundred fifty-eight thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 64 68 72 96 102 128 136 144 153 192 204 272 288 306 384 408 544 576 612 677 816 1088 1152 1224 1354 1632 2031 2176 2448 2708 3264 4062 4896 5416 6093 6528 8124 9792 10832 11509 12186 16248 19584 21664 23018 24372 32496 34527 43328 46036 48744 64992 69054 86656 92072 97488 103581 129984 138108 184144 194976 207162 259968 276216 368288 389952 414324 552432 736576 779904 828648 1104864 1473152 1657296 2209728 3314592 4419456 6629184 13258368