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13724973 = 321980263
BaseRepresentation
bin110100010110…
…110100101101
3221211022010100
4310112310231
512003144343
61210101313
7224442333
oct64266455
927738110
1013724973
117824859
12471a839
132ac71b2
141b73b53
1513119d3
hexd16d2d

13724973 has 12 divisors (see below), whose sum is σ = 20868640. Its totient is φ = 8668296.

The previous prime is 13724969. The next prime is 13724983. The reversal of 13724973 is 37942731.

13724973 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13724973 - 22 = 13724969 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13724903) 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 11 ways as a sum of consecutive naturals, for example, 39961 + ... + 40302.

Almost surely, 213724973 is an apocalyptic number.

It is an amenable number.

13724973 is a deficient number, since it is larger than the sum of its proper divisors (7143667).

13724973 is a wasteful number, since it uses less digits than its factorization.

13724973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80288 (or 80285 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 13724973 is about 3704.7230665733. The cubic root of 13724973 is about 239.4255532258.

The spelling of 13724973 in words is "thirteen million, seven hundred twenty-four thousand, nine hundred seventy-three".

Divisors: 1 3 9 19 57 171 80263 240789 722367 1524997 4574991 13724973