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207530801 = 5692641
BaseRepresentation
bin11000101111010…
…10101100110001
3112110111122201222
430113222230301
5411111441201
632332034425
75066661032
oct1427525461
9473448658
10207530801
11a7166a65
1259602a15
1333cc2cba
141d7c2a89
151334591b
hexc5eab31

207530801 has 6 divisors (see below), whose sum is σ = 208220502. Its totient is φ = 206842880.

The previous prime is 207530797. The next prime is 207530819. The reversal of 207530801 is 108035702.

It can be written as a sum of positive squares in 3 ways, for example, as 13653025 + 193877776 = 3695^2 + 13924^2 .

It is not a de Polignac number, because 207530801 - 22 = 207530797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207530501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 323441 + ... + 324081.

It is an arithmetic number, because the mean of its divisors is an integer number (34703417).

Almost surely, 2207530801 is an apocalyptic number.

It is an amenable number.

207530801 is a deficient number, since it is larger than the sum of its proper divisors (689701).

207530801 is an frugal number, since it uses more digits than its factorization.

207530801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779 (or 1210 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 207530801 is about 14405.9293695339. The cubic root of 207530801 is about 592.0533653880.

The spelling of 207530801 in words is "two hundred seven million, five hundred thirty thousand, eight hundred one".

Divisors: 1 569 641 323761 364729 207530801