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13444452 = 22327311721
BaseRepresentation
bin110011010010…
…010101100100
3221022001022200
4303102111210
511420210302
61200054500
7222163440
oct63222544
927261280
1013444452
11765301a
124604430
132a295c8
141add820
1512a881c
hexcd2564

13444452 has 72 divisors (see below), whose sum is σ = 40115712. Its totient is φ = 3715200.

The previous prime is 13444373. The next prime is 13444469. The reversal of 13444452 is 25444431.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 23 ways as a sum of consecutive naturals, for example, 6952 + ... + 8672.

Almost surely, 213444452 is an apocalyptic number.

13444452 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 13444452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20057856).

13444452 is an abundant number, since it is smaller than the sum of its proper divisors (26671260).

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

13444452 is a wasteful number, since it uses less digits than its factorization.

13444452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769 (or 1764 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 13444452 is about 3666.6676969696. The cubic root of 13444452 is about 237.7831275343.

Adding to 13444452 its reverse (25444431), we get a palindrome (38888883).

The spelling of 13444452 in words is "thirteen million, four hundred forty-four thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 31 36 42 62 63 84 93 124 126 186 217 252 279 372 434 558 651 868 1116 1302 1721 1953 2604 3442 3906 5163 6884 7812 10326 12047 15489 20652 24094 30978 36141 48188 53351 61956 72282 106702 108423 144564 160053 213404 216846 320106 373457 433692 480159 640212 746914 960318 1120371 1493828 1920636 2240742 3361113 4481484 6722226 13444452