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9145201 = 131741381
BaseRepresentation
bin100010111000…
…101101110001
3122012121212011
4202320231301
54320121301
6524002521
7140506252
oct42705561
918177764
109145201
115186a1a
123090441
131b82780
141300b29
15c09a51
hex8b8b71

9145201 has 8 divisors (see below), whose sum is σ = 10428264. Its totient is φ = 7944960.

The previous prime is 9145187. The next prime is 9145219. The reversal of 9145201 is 1025419.

9145201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1299600 + 7845601 = 1140^2 + 2801^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9145201 - 29 = 9144689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9145291) 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, 20470 + ... + 20911.

It is an arithmetic number, because the mean of its divisors is an integer number (1303533).

Almost surely, 29145201 is an apocalyptic number.

It is an amenable number.

9145201 is a deficient number, since it is larger than the sum of its proper divisors (1283063).

9145201 is a wasteful number, since it uses less digits than its factorization.

9145201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41411.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 9145201 is about 3024.1033381814. The cubic root of 9145201 is about 209.1210504237.

The spelling of 9145201 in words is "nine million, one hundred forty-five thousand, two hundred one".

Divisors: 1 13 17 221 41381 537953 703477 9145201