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13189300 = 2252131893
BaseRepresentation
bin110010010100…
…000010110100
3220211002022121
4302110002310
511334024200
61150405324
7220051525
oct62240264
926732277
1013189300
117499353
124500844
13296a427
141a7484c
151257e1a
hexc940b4

13189300 has 18 divisors (see below), whose sum is σ = 28620998. Its totient is φ = 5275680.

The previous prime is 13189283. The next prime is 13189321. The reversal of 13189300 is 398131.

It can be written as a sum of positive squares in 3 ways, for example, as 487204 + 12702096 = 698^2 + 3564^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65847 + ... + 66046.

Almost surely, 213189300 is an apocalyptic number.

13189300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13189300 is an abundant number, since it is smaller than the sum of its proper divisors (15431698).

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

13189300 is a wasteful number, since it uses less digits than its factorization.

13189300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131907 (or 131900 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 13189300 is about 3631.7075873479. The cubic root of 13189300 is about 236.2692751367.

The spelling of 13189300 in words is "thirteen million, one hundred eighty-nine thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 131893 263786 527572 659465 1318930 2637860 3297325 6594650 13189300