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2090201 = 17122953
BaseRepresentation
bin111111110010011011001
310221012012212
413332103121
51013341301
6112444505
723523611
oct7762331
93835185
102090201
1111a8443
12849735
13582509
143c5a41
152b44bb
hex1fe4d9

2090201 has 4 divisors (see below), whose sum is σ = 2213172. Its totient is φ = 1967232.

The previous prime is 2090197. The next prime is 2090203. The reversal of 2090201 is 1020902.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1020902 = 2510451.

It can be written as a sum of positive squares in 2 ways, for example, as 1819801 + 270400 = 1349^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 2090201 - 22 = 2090197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2090203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61460 + ... + 61493.

It is an arithmetic number, because the mean of its divisors is an integer number (553293).

22090201 is an apocalyptic number.

It is an amenable number.

2090201 is a deficient number, since it is larger than the sum of its proper divisors (122971).

2090201 is a wasteful number, since it uses less digits than its factorization.

2090201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122970.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2090201 is about 1445.7527451124. The cubic root of 2090201 is about 127.8584250110.

The spelling of 2090201 in words is "two million, ninety thousand, two hundred one".

Divisors: 1 17 122953 2090201