Search a number
-
+
8125801 = 531391103
BaseRepresentation
bin11110111111110101101001
3120021211111121
4132333311221
54040011201
6450055241
7126032245
oct36776551
916254447
108125801
114650042
12287a521
1318b6788
141117425
15aa79a1
hex7bfd69

8125801 has 8 divisors (see below), whose sum is σ = 8346240. Its totient is φ = 7907952.

The previous prime is 8125781. The next prime is 8125811. The reversal of 8125801 is 1085218.

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 8125801 - 217 = 7994729 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 (8125811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6816 + ... + 7918.

It is an arithmetic number, because the mean of its divisors is an integer number (1043280).

Almost surely, 28125801 is an apocalyptic number.

It is an amenable number.

8125801 is a deficient number, since it is larger than the sum of its proper divisors (220439).

8125801 is a wasteful number, since it uses less digits than its factorization.

8125801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 8125801 is about 2850.5790639798. The cubic root of 8125801 is about 201.0428940741.

The spelling of 8125801 in words is "eight million, one hundred twenty-five thousand, eight hundred one".

Divisors: 1 53 139 1103 7367 58459 153317 8125801