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13145384 = 2371911229
BaseRepresentation
bin110010001001…
…010100101000
3220201212002002
4302021110220
511331123014
61145430132
7216506510
oct62112450
926655062
1013145384
11746935a
12449b348
132953445
141a62840
151249dde
hexc89528

13145384 has 32 divisors (see below), whose sum is σ = 28339200. Its totient is φ = 5599680.

The previous prime is 13145357. The next prime is 13145387. The reversal of 13145384 is 48354131.

It is a super-2 number, since 2×131453842 = 345602241014912, which contains 22 as substring.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13145387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10082 + ... + 11310.

It is an arithmetic number, because the mean of its divisors is an integer number (885600).

Almost surely, 213145384 is an apocalyptic number.

13145384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13145384 is an abundant number, since it is smaller than the sum of its proper divisors (15193816).

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

13145384 is a wasteful number, since it uses less digits than its factorization.

13145384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433 (or 1429 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 13145384 is about 3625.6563543723. The cubic root of 13145384 is about 236.0067507405.

The spelling of 13145384 in words is "thirteen million, one hundred forty-five thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 28 56 191 382 764 1229 1337 1528 2458 2674 4916 5348 8603 9832 10696 17206 34412 68824 234739 469478 938956 1643173 1877912 3286346 6572692 13145384