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8200160561 = 31872573003
BaseRepresentation
bin1111010001100010…
…01000010100110001
3210011111001022120102
413220301020110301
5113243220114221
63433405522145
7410131133435
oct75061102461
923144038512
108200160561
11352885aaaa
12170a273355
13a08b55518
1457b0cc9c5
1532ed8730b
hex1e8c48531

8200160561 has 4 divisors (see below), whose sum is σ = 8202736752. Its totient is φ = 8197584372.

The previous prime is 8200160539. The next prime is 8200160567. The reversal of 8200160561 is 1650610028.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8200160561 - 210 = 8200159537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8200160567) 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, 1283315 + ... + 1289688.

It is an arithmetic number, because the mean of its divisors is an integer number (2050684188).

Almost surely, 28200160561 is an apocalyptic number.

It is an amenable number.

8200160561 is a deficient number, since it is larger than the sum of its proper divisors (2576191).

8200160561 is a wasteful number, since it uses less digits than its factorization.

8200160561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576190.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 8200160561 is about 90554.7379268473. The cubic root of 8200160561 is about 2016.5428367591.

Adding to 8200160561 its reverse (1650610028), we get a palindrome (9850770589).

The spelling of 8200160561 in words is "eight billion, two hundred million, one hundred sixty thousand, five hundred sixty-one".

Divisors: 1 3187 2573003 8200160561