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13884730 = 251388473
BaseRepresentation
bin110100111101…
…110100111010
3222010102021021
4310331310322
512023302410
61213333054
7226006156
oct64756472
928112237
1013884730
117923892
12479718a
132b51b22
141bb6066
151343eda
hexd3dd3a

13884730 has 8 divisors (see below), whose sum is σ = 24992532. Its totient is φ = 5553888.

The previous prime is 13884727. The next prime is 13884749. The reversal of 13884730 is 3748831.

It can be written as a sum of positive squares in 2 ways, for example, as 13184161 + 700569 = 3631^2 + 837^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×138847303 (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694227 + ... + 694246.

Almost surely, 213884730 is an apocalyptic number.

13884730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13884730 is a deficient number, since it is larger than the sum of its proper divisors (11107802).

13884730 is a wasteful number, since it uses less digits than its factorization.

13884730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388480.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 13884730 is about 3726.2219472275. The cubic root of 13884730 is about 240.3509333665.

The spelling of 13884730 in words is "thirteen million, eight hundred eighty-four thousand, seven hundred thirty".

Divisors: 1 2 5 10 1388473 2776946 6942365 13884730