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14212520 = 2357193263
BaseRepresentation
bin110110001101…
…110110101000
3222202001220122
4312031312220
512114300040
61224342412
7231542630
oct66156650
928661818
1014212520
118028093
124914a08
132c3809a
141c5d6c0
1513ab1b5
hexd8dda8

14212520 has 64 divisors (see below), whose sum is σ = 36875520. Its totient is φ = 4829184.

The previous prime is 14212519. The next prime is 14212529. The reversal of 14212520 is 2521241.

It is not an unprimeable number, because it can be changed into a prime (14212529) 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, 53909 + ... + 54171.

It is an arithmetic number, because the mean of its divisors is an integer number (576180).

Almost surely, 214212520 is an apocalyptic number.

14212520 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 14212520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18437760).

14212520 is an abundant number, since it is smaller than the sum of its proper divisors (22663000).

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

14212520 is a wasteful number, since it uses less digits than its factorization.

14212520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 14212520 is about 3769.9496017851. The cubic root of 14212520 is about 242.2276390912.

Adding to 14212520 its reverse (2521241), we get a palindrome (16733761).

The spelling of 14212520 in words is "fourteen million, two hundred twelve thousand, five hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 193 263 280 386 526 772 965 1052 1315 1351 1544 1841 1930 2104 2630 2702 3682 3860 5260 5404 6755 7364 7720 9205 10520 10808 13510 14728 18410 27020 36820 50759 54040 73640 101518 203036 253795 355313 406072 507590 710626 1015180 1421252 1776565 2030360 2842504 3553130 7106260 14212520