Search a number
-
+
8077812 = 2231971499
BaseRepresentation
bin11110110100000111110100
3120012101200020
4132310013310
54031442222
6445045140
7125442321
oct36640764
916171606
108077812
114617a86
1228567b0
13189a992
141103b48
15a9865c
hex7b41f4

8077812 has 48 divisors (see below), whose sum is σ = 20160000. Its totient is φ = 2509920.

The previous prime is 8077799. The next prime is 8077847. The reversal of 8077812 is 2187708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15939 + ... + 16437.

It is an arithmetic number, because the mean of its divisors is an integer number (420000).

Almost surely, 28077812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8077812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10080000).

8077812 is an abundant number, since it is smaller than the sum of its proper divisors (12082188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8077812 is a wasteful number, since it uses less digits than its factorization.

8077812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 8077812 is about 2842.1491867951. The cubic root of 8077812 is about 200.6463422914.

The spelling of 8077812 in words is "eight million, seventy-seven thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 71 76 114 142 213 228 284 426 499 852 998 1349 1497 1996 2698 2994 4047 5396 5988 8094 9481 16188 18962 28443 35429 37924 56886 70858 106287 113772 141716 212574 425148 673151 1346302 2019453 2692604 4038906 8077812