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14442520 = 2351767317
BaseRepresentation
bin110111000110…
…000000011000
31000011202102011
4313012000120
512144130040
61233315304
7233521321
oct67060030
930152364
1014442520
118174974
124a05b34
132cb8991
141cbd448
1514043ea
hexdc6018

14442520 has 64 divisors (see below), whose sum is σ = 35030880. Its totient is φ = 5339136.

The previous prime is 14442509. The next prime is 14442521. The reversal of 14442520 is 2524441.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 14442491 and 14442500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14442521) 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, 45402 + ... + 45718.

Almost surely, 214442520 is an apocalyptic number.

14442520 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 14442520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17515440).

14442520 is an abundant number, since it is smaller than the sum of its proper divisors (20588360).

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

14442520 is a wasteful number, since it uses less digits than its factorization.

14442520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 14442520 is about 3800.3315644822. The cubic root of 14442520 is about 243.5273030648.

Adding to 14442520 its reverse (2524441), we get a palindrome (16966961).

The spelling of 14442520 in words is "fourteen million, four hundred forty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 67 68 85 134 136 170 268 317 335 340 536 634 670 680 1139 1268 1340 1585 2278 2536 2680 3170 4556 5389 5695 6340 9112 10778 11390 12680 21239 21556 22780 26945 42478 43112 45560 53890 84956 106195 107780 169912 212390 215560 361063 424780 722126 849560 1444252 1805315 2888504 3610630 7221260 14442520