Search a number
-
+
8328642869 = 316137911621
BaseRepresentation
bin1111100000110110…
…10000000100110101
3210111102210220011102
413300123100010311
5114024113032434
63454235415445
7413251203431
oct76033200465
923442726142
108328642869
113594335728
1217452b4585
13a2965c261
145901b59c1
1533b2b607e
hex1f06d0135

8328642869 has 16 divisors (see below), whose sum is σ = 8762058240. Its totient is φ = 7906248000.

The previous prime is 8328642857. The next prime is 8328642919. The reversal of 8328642869 is 9682468238.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8328642869 is a prime.

It is a super-2 number, since 2×83286428692 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8328644869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710879 + ... + 722499.

It is an arithmetic number, because the mean of its divisors is an integer number (547628640).

Almost surely, 28328642869 is an apocalyptic number.

It is an amenable number.

8328642869 is a deficient number, since it is larger than the sum of its proper divisors (433415371).

8328642869 is a wasteful number, since it uses less digits than its factorization.

8328642869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12092.

The product of its digits is 7962624, while the sum is 56.

The square root of 8328642869 is about 91261.3985702608. The cubic root of 8328642869 is about 2027.0202157824.

The spelling of 8328642869 in words is "eight billion, three hundred twenty-eight million, six hundred forty-two thousand, eight hundred sixty-nine".

Divisors: 1 31 61 379 1891 11621 11749 23119 360251 708881 716689 4404359 21975311 136535129 268665899 8328642869