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13250380 = 225111341113
BaseRepresentation
bin110010100010…
…111101001100
3220221012002211
4302202331030
511343003010
61152000204
7220424563
oct62427514
926835084
1013250380
117530230
124530064
13298c180
141a8cbda
15126b08a
hexca2f4c

13250380 has 96 divisors (see below), whose sum is σ = 33784128. Its totient is φ = 4300800.

The previous prime is 13250357. The next prime is 13250383. The reversal of 13250380 is 8305231.

13250380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (13250383) 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, 117204 + ... + 117316.

It is an arithmetic number, because the mean of its divisors is an integer number (351918).

Almost surely, 213250380 is an apocalyptic number.

13250380 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 13250380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16892064).

13250380 is an abundant number, since it is smaller than the sum of its proper divisors (20533748).

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

13250380 is a wasteful number, since it uses less digits than its factorization.

13250380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13250380 is about 3640.1071412803. The cubic root of 13250380 is about 236.6334366710.

The spelling of 13250380 in words is "thirteen million, two hundred fifty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 13 20 22 26 41 44 52 55 65 82 110 113 130 143 164 205 220 226 260 286 410 451 452 533 565 572 715 820 902 1066 1130 1243 1430 1469 1804 2132 2255 2260 2486 2665 2860 2938 4510 4633 4972 5330 5863 5876 6215 7345 9020 9266 10660 11726 12430 14690 16159 18532 23165 23452 24860 29315 29380 32318 46330 50963 58630 60229 64636 80795 92660 101926 117260 120458 161590 203852 240916 254815 301145 323180 509630 602290 662519 1019260 1204580 1325038 2650076 3312595 6625190 13250380