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13241384 = 2313127321
BaseRepresentation
bin110010100000…
…110000101000
3220220201202122
4302200300220
511342211014
61151450412
7220356422
oct62406050
926821678
1013241384
1175244a2
124526a08
132988050
141a89812
15126858e
hexca0c28

13241384 has 16 divisors (see below), whose sum is σ = 26737620. Its totient is φ = 6111360.

The previous prime is 13241381. The next prime is 13241387. The reversal of 13241384 is 48314231.

It is an interprime number because it is at equal distance from previous prime (13241381) and next prime (13241387).

It can be written as a sum of positive squares in 2 ways, for example, as 13118884 + 122500 = 3622^2 + 350^2 .

It is a super-3 number, since 3×132413843 (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (13241381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63557 + ... + 63764.

Almost surely, 213241384 is an apocalyptic number.

It is an amenable number.

13241384 is an abundant number, since it is smaller than the sum of its proper divisors (13496236).

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

13241384 is a wasteful number, since it uses less digits than its factorization.

13241384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127340 (or 127336 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 13241384 is about 3638.8712535620. The cubic root of 13241384 is about 236.5798725133.

The spelling of 13241384 in words is "thirteen million, two hundred forty-one thousand, three hundred eighty-four".

Divisors: 1 2 4 8 13 26 52 104 127321 254642 509284 1018568 1655173 3310346 6620692 13241384