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13380740 = 2254315559
BaseRepresentation
bin110011000010…
…110010000100
3221011210220222
4303002302010
511411140430
61154443512
7221506622
oct63026204
927153828
1013380740
11760a16a
124593598
132a065c9
141ac4512
1512949e5
hexcc2c84

13380740 has 24 divisors (see below), whose sum is σ = 28754880. Its totient is φ = 5227488.

The previous prime is 13380727. The next prime is 13380743. The reversal of 13380740 is 4708331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13380743) 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, 6920 + ... + 8639.

It is an arithmetic number, because the mean of its divisors is an integer number (1198120).

Almost surely, 213380740 is an apocalyptic number.

13380740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13380740 is an abundant number, since it is smaller than the sum of its proper divisors (15374140).

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

13380740 is a wasteful number, since it uses less digits than its factorization.

13380740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15611 (or 15609 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 13380740 is about 3657.9693820479. The cubic root of 13380740 is about 237.4069219755.

The spelling of 13380740 in words is "thirteen million, three hundred eighty thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 15559 31118 62236 77795 155590 311180 669037 1338074 2676148 3345185 6690370 13380740