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14391930 = 2357193607
BaseRepresentation
bin110110111001…
…101001111010
31000002012000110
4312321221322
512141020210
61232245150
7233220660
oct66715172
930065013
1014391930
11813a963
1249a07b6
132c9b947
141ca8c30
1513e4420
hexdb9a7a

14391930 has 64 divisors (see below), whose sum is σ = 41564160. Its totient is φ = 3115584.

The previous prime is 14391919. The next prime is 14391941. The reversal of 14391930 is 3919341.

It is an interprime number because it is at equal distance from previous prime (14391919) and next prime (14391941).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2187 + ... + 5793.

It is an arithmetic number, because the mean of its divisors is an integer number (649440).

Almost surely, 214391930 is an apocalyptic number.

14391930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14391930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20782080).

14391930 is an abundant number, since it is smaller than the sum of its proper divisors (27172230).

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

14391930 is a wasteful number, since it uses less digits than its factorization.

14391930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3643.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 14391930 is about 3793.6697273221. The cubic root of 14391930 is about 243.2426237655.

The spelling of 14391930 in words is "fourteen million, three hundred ninety-one thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 19 21 30 35 38 42 57 70 95 105 114 133 190 210 266 285 399 570 665 798 1330 1995 3607 3990 7214 10821 18035 21642 25249 36070 50498 54105 68533 75747 108210 126245 137066 151494 205599 252490 342665 378735 411198 479731 685330 757470 959462 1027995 1439193 2055990 2398655 2878386 4797310 7195965 14391930