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14012520 = 2335235077
BaseRepresentation
bin110101011101…
…000001101000
3222100220120020
4311131001220
512041400040
61220200440
7230050554
oct65350150
928326506
1014012520
117a008a5
124839120
132b98042
141c0a864
15136bcd0
hexd5d068

14012520 has 64 divisors (see below), whose sum is σ = 43873920. Its totient is φ = 3573504.

The previous prime is 14012513. The next prime is 14012549. The reversal of 14012520 is 2521041.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 14012520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222 + ... + 5298.

It is an arithmetic number, because the mean of its divisors is an integer number (685530).

Almost surely, 214012520 is an apocalyptic number.

14012520 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 14012520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21936960).

14012520 is an abundant number, since it is smaller than the sum of its proper divisors (29861400).

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

14012520 is a wasteful number, since it uses less digits than its factorization.

14012520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114 (or 5110 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 14012520 is about 3743.3300682681. The cubic root of 14012520 is about 241.0860502047.

Adding to 14012520 its reverse (2521041), we get a palindrome (16533561).

The spelling of 14012520 in words is "fourteen million, twelve thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 23 24 30 40 46 60 69 92 115 120 138 184 230 276 345 460 552 690 920 1380 2760 5077 10154 15231 20308 25385 30462 40616 50770 60924 76155 101540 116771 121848 152310 203080 233542 304620 350313 467084 583855 609240 700626 934168 1167710 1401252 1751565 2335420 2802504 3503130 4670840 7006260 14012520