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17204045 = 531310993
BaseRepresentation
bin100000110100…
…0001101001101
31012101001111212
41001220031031
513401012140
61412424205
7266142365
oct101501515
935331455
1017204045
119790721
125918065
133744911
1423db9a5
15179c765
hex106834d

17204045 has 8 divisors (see below), whose sum is σ = 20712696. Its totient is φ = 13718016.

The previous prime is 17204029. The next prime is 17204053. The reversal of 17204045 is 54040271.

It can be written as a sum of positive squares in 4 ways, for example, as 769129 + 16434916 = 877^2 + 4054^2 .

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 17204045 - 24 = 17204029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 17204045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3932 + ... + 7061.

It is an arithmetic number, because the mean of its divisors is an integer number (2589087).

Almost surely, 217204045 is an apocalyptic number.

It is an amenable number.

17204045 is a deficient number, since it is larger than the sum of its proper divisors (3508651).

17204045 is a wasteful number, since it uses less digits than its factorization.

17204045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11311.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 17204045 is about 4147.7759100511. The cubic root of 17204045 is about 258.1528099416.

The spelling of 17204045 in words is "seventeen million, two hundred four thousand, forty-five".

Divisors: 1 5 313 1565 10993 54965 3440809 17204045