Search a number
-
+
80125910 = 2516349157
BaseRepresentation
bin1001100011010…
…01111111010110
312120202211002022
410301221333112
5131003012120
611541213142
71662026144
oct461517726
9176684068
1080125910
1141257867
1222a011b2
13137a57a7
14a8da594
15707b025
hex4c69fd6

80125910 has 16 divisors (see below), whose sum is σ = 145114416. Its totient is φ = 31853088.

The previous prime is 80125909. The next prime is 80125919. The reversal of 80125910 is 1952108.

It is a happy number.

It is a super-2 number, since 2×801259102 = 12840322906656200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80125910.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80125919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22949 + ... + 26208.

It is an arithmetic number, because the mean of its divisors is an integer number (9069651).

Almost surely, 280125910 is an apocalyptic number.

80125910 is a deficient number, since it is larger than the sum of its proper divisors (64988506).

80125910 is a wasteful number, since it uses less digits than its factorization.

80125910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49327.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 80125910 is about 8951.3077256901. The cubic root of 80125910 is about 431.1128735762.

The spelling of 80125910 in words is "eighty million, one hundred twenty-five thousand, nine hundred ten".

Divisors: 1 2 5 10 163 326 815 1630 49157 98314 245785 491570 8012591 16025182 40062955 80125910