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14281812 = 2233223593
BaseRepresentation
bin110110011110…
…110001010100
3222212120222000
4312132301110
512124004222
61230035300
7232251636
oct66366124
928776860
1014281812
118075156
124948b30
132c6079c
141c7aa56
1513c19ac
hexd9ec54

14281812 has 48 divisors (see below), whose sum is σ = 37255680. Its totient is φ = 4731264.

The previous prime is 14281811. The next prime is 14281823. The reversal of 14281812 is 21818241.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14281811) 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, 23788 + ... + 24380.

It is an arithmetic number, because the mean of its divisors is an integer number (776160).

Almost surely, 214281812 is an apocalyptic number.

14281812 is a gapful number since it is divisible by the number (12) 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 14281812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18627840).

14281812 is an abundant number, since it is smaller than the sum of its proper divisors (22973868).

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

14281812 is a wasteful number, since it uses less digits than its factorization.

14281812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 821 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 14281812 is about 3779.1284709573. The cubic root of 14281812 is about 242.6206548770.

It can be divided in two parts, 1428 and 1812, that added together give a triangular number (3240 = T80).

The spelling of 14281812 in words is "fourteen million, two hundred eighty-one thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 223 446 593 669 892 1186 1338 1779 2007 2372 2676 3558 4014 5337 6021 7116 8028 10674 12042 16011 21348 24084 32022 64044 132239 264478 396717 528956 793434 1190151 1586868 2380302 3570453 4760604 7140906 14281812