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14012720 = 2451071637
BaseRepresentation
bin110101011101…
…000100110000
3222100220211122
4311131010300
512041401340
61220201412
7230051261
oct65350460
928326748
1014012720
117a00a67
124839268
132b98167
141c0a968
15136bdb5
hexd5d130

14012720 has 40 divisors (see below), whose sum is σ = 32904144. Its totient is φ = 5549312.

The previous prime is 14012707. The next prime is 14012731. The reversal of 14012720 is 2721041.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 7742 + ... + 9378.

Almost surely, 214012720 is an apocalyptic number.

14012720 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 14012720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16452072).

14012720 is an abundant number, since it is smaller than the sum of its proper divisors (18891424).

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

14012720 is a wasteful number, since it uses less digits than its factorization.

14012720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757 (or 1751 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 14012720 is about 3743.3567823546. The cubic root of 14012720 is about 241.0871972023.

Adding to 14012720 its reverse (2721041), we get a palindrome (16733761).

The spelling of 14012720 in words is "fourteen million, twelve thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 107 214 428 535 856 1070 1637 1712 2140 3274 4280 6548 8185 8560 13096 16370 26192 32740 65480 130960 175159 350318 700636 875795 1401272 1751590 2802544 3503180 7006360 14012720