Search a number
-
+
80626980 = 22357191969
BaseRepresentation
bin1001100111001…
…00010100100100
312121201021102110
410303210110210
5131120030410
612000041020
71666214040
oct463442444
9177637373
1080626980
114156a275
1223003170
131391c895
14a9cb020
157129720
hex4ce4524

80626980 has 48 divisors (see below), whose sum is σ = 258007680. Its totient is φ = 18428928.

The previous prime is 80626979. The next prime is 80626991. The reversal of 80626980 is 8962608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95565 + ... + 96404.

It is an arithmetic number, because the mean of its divisors is an integer number (5375160).

Almost surely, 280626980 is an apocalyptic number.

It is an amenable number.

80626980 is an abundant number, since it is smaller than the sum of its proper divisors (177380700).

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

80626980 is a wasteful number, since it uses less digits than its factorization.

80626980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191988 (or 191986 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 80626980 is about 8979.2527528743. The cubic root of 80626980 is about 432.0096662789.

The spelling of 80626980 in words is "eighty million, six hundred twenty-six thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 191969 383938 575907 767876 959845 1151814 1343783 1919690 2303628 2687566 2879535 3839380 4031349 5375132 5759070 6718915 8062698 11518140 13437830 16125396 20156745 26875660 40313490 80626980