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201300551 = 1731163587
BaseRepresentation
bin10111111111110…
…01101001000111
3112000210010102222
423333321221013
5403013104201
631550322555
74663012034
oct1377715107
9460703388
10201300551
11a36a10a1
12574b945b
133292126a
141ca4038b
1512a1491b
hexbff9a47

201300551 has 4 divisors (see below), whose sum is σ = 202464312. Its totient is φ = 200136792.

The previous prime is 201300527. The next prime is 201300559. The reversal of 201300551 is 155003102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-201300551 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 (201300559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581621 + ... + 581966.

It is an arithmetic number, because the mean of its divisors is an integer number (50616078).

Almost surely, 2201300551 is an apocalyptic number.

201300551 is a deficient number, since it is larger than the sum of its proper divisors (1163761).

201300551 is a wasteful number, since it uses less digits than its factorization.

201300551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163760.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 201300551 is about 14188.0425358821. The cubic root of 201300551 is about 586.0684212684.

Adding to 201300551 its reverse (155003102), we get a palindrome (356303653).

The spelling of 201300551 in words is "two hundred one million, three hundred thousand, five hundred fifty-one".

Divisors: 1 173 1163587 201300551