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13452644 = 22171811093
BaseRepresentation
bin110011010100…
…010101100100
3221022110120002
4303110111210
511420441034
61200200432
7222226352
oct63242544
927273502
1013452644
117659197
124609118
132a3025a
141b027d2
1512aae7e
hexcd4564

13452644 has 24 divisors (see below), whose sum is σ = 25087608. Its totient is φ = 6289920.

The previous prime is 13452641. The next prime is 13452683. The reversal of 13452644 is 44625431.

It can be written as a sum of positive squares in 4 ways, for example, as 3467044 + 9985600 = 1862^2 + 3160^2 .

It is not an unprimeable number, because it can be changed into a prime (13452641) by changing a digit.

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, 11762 + ... + 12854.

It is an arithmetic number, because the mean of its divisors is an integer number (1045317).

Almost surely, 213452644 is an apocalyptic number.

It is an amenable number.

13452644 is a deficient number, since it is larger than the sum of its proper divisors (11634964).

13452644 is a wasteful number, since it uses less digits than its factorization.

13452644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295 (or 1293 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 13452644 is about 3667.7846174496. The cubic root of 13452644 is about 237.8314132232.

The spelling of 13452644 in words is "thirteen million, four hundred fifty-two thousand, six hundred forty-four".

Divisors: 1 2 4 17 34 68 181 362 724 1093 2186 3077 4372 6154 12308 18581 37162 74324 197833 395666 791332 3363161 6726322 13452644