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14213680 = 2451379173
BaseRepresentation
bin110110001110…
…001000110000
3222202010111121
4312032020300
512114314210
61224352024
7231546205
oct66161060
928663447
1014213680
118028a48
124915614
132c38780
141c5dcac
1513ab6da
hexd8e230

14213680 has 80 divisors (see below), whose sum is σ = 36247680. Its totient is φ = 5151744.

The previous prime is 14213677. The next prime is 14213687. The reversal of 14213680 is 8631241.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (14213687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82074 + ... + 82246.

It is an arithmetic number, because the mean of its divisors is an integer number (453096).

Almost surely, 214213680 is an apocalyptic number.

14213680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14213680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18123840).

14213680 is an abundant number, since it is smaller than the sum of its proper divisors (22034000).

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

14213680 is a wasteful number, since it uses less digits than its factorization.

14213680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 14213680 is about 3770.1034468566. The cubic root of 14213680 is about 242.2342289715.

The spelling of 14213680 in words is "fourteen million, two hundred thirteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 79 80 104 130 158 173 208 260 316 346 395 520 632 692 790 865 1027 1040 1264 1384 1580 1730 2054 2249 2768 3160 3460 4108 4498 5135 6320 6920 8216 8996 10270 11245 13667 13840 16432 17992 20540 22490 27334 35984 41080 44980 54668 68335 82160 89960 109336 136670 177671 179920 218672 273340 355342 546680 710684 888355 1093360 1421368 1776710 2842736 3553420 7106840 14213680