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8305780001 = 78710553723
BaseRepresentation
bin1111011110001000…
…00010010100100001
3210102211210100012112
413233010002110201
5114002234430001
63452101405105
7412552652021
oct75704022441
923384710175
108305780001
11358243a4a2
121739709795
13a249b5a2c
1458b143a81
1533929bcbb
hex1ef102521

8305780001 has 4 divisors (see below), whose sum is σ = 8316334512. Its totient is φ = 8295225492.

The previous prime is 8305779983. The next prime is 8305780009. The reversal of 8305780001 is 1000875038.

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 8305780001 - 210 = 8305778977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8305780001.

It is not an unprimeable number, because it can be changed into a prime (8305780009) 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, 5276075 + ... + 5277648.

It is an arithmetic number, because the mean of its divisors is an integer number (2079083628).

Almost surely, 28305780001 is an apocalyptic number.

It is an amenable number.

8305780001 is a deficient number, since it is larger than the sum of its proper divisors (10554511).

8305780001 is a wasteful number, since it uses less digits than its factorization.

8305780001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10554510.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 8305780001 is about 91136.0521473253. The cubic root of 8305780001 is about 2025.1637322063.

The spelling of 8305780001 in words is "eight billion, three hundred five million, seven hundred eighty thousand, one".

Divisors: 1 787 10553723 8305780001