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13445001 = 33497963
BaseRepresentation
bin110011010010…
…011110001001
3221022002002000
4303102132021
511420220001
61200101213
7222165153
oct63223611
927262060
1013445001
117653479
124604809
132a2992b
141addad3
1512a8a86
hexcd2789

13445001 has 8 divisors (see below), whose sum is σ = 19918560. Its totient is φ = 8963316.

The previous prime is 13444999. The next prime is 13445017. The reversal of 13445001 is 10054431.

It is a happy number.

13445001 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13445001 - 21 = 13444999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13445021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248955 + ... + 249008.

It is an arithmetic number, because the mean of its divisors is an integer number (2489820).

Almost surely, 213445001 is an apocalyptic number.

It is an amenable number.

13445001 is a deficient number, since it is larger than the sum of its proper divisors (6473559).

13445001 is an equidigital number, since it uses as much as digits as its factorization.

13445001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497972 (or 497966 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 13445001 is about 3666.7425598206. The cubic root of 13445001 is about 237.7863640902.

Adding to 13445001 its reverse (10054431), we get a palindrome (23499432).

The spelling of 13445001 in words is "thirteen million, four hundred forty-five thousand, one".

Divisors: 1 3 9 27 497963 1493889 4481667 13445001