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13849390 = 2517411987
BaseRepresentation
bin110100110101…
…001100101110
3222001121210101
4310311030232
512021140030
61212501314
7225501142
oct64651456
928047711
1013849390
1178aa285
12477a83a
132b3ba09
141ba7222
1513387ca
hexd3532e

13849390 has 32 divisors (see below), whose sum is σ = 27052704. Its totient is φ = 5084160.

The previous prime is 13849387. The next prime is 13849391. The reversal of 13849390 is 9394831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13849391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5977 + ... + 7963.

It is an arithmetic number, because the mean of its divisors is an integer number (845397).

Almost surely, 213849390 is an apocalyptic number.

13849390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13849390 is a deficient number, since it is larger than the sum of its proper divisors (13203314).

13849390 is a wasteful number, since it uses less digits than its factorization.

13849390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 13849390 is about 3721.4768573780. The cubic root of 13849390 is about 240.1468430068.

The spelling of 13849390 in words is "thirteen million, eight hundred forty-nine thousand, three hundred ninety".

Divisors: 1 2 5 10 17 34 41 82 85 170 205 410 697 1394 1987 3485 3974 6970 9935 19870 33779 67558 81467 162934 168895 337790 407335 814670 1384939 2769878 6924695 13849390