Search a number
-
+
80028642 = 2337335759
BaseRepresentation
bin1001100010100…
…10001111100010
312120120212122210
410301102033202
5130441404032
611535142550
71661142441
oct461221742
9176525583
1080028642
11411a0781
1222974a56
1313770435
14a8b2d58
15705c2cc
hex4c523e2

80028642 has 16 divisors (see below), whose sum is σ = 160490880. Its totient is φ = 26603952.

The previous prime is 80028601. The next prime is 80028647. The reversal of 80028642 is 24682008.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80028647) 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, 15642 + ... + 20117.

It is an arithmetic number, because the mean of its divisors is an integer number (10030680).

Almost surely, 280028642 is an apocalyptic number.

80028642 is an abundant number, since it is smaller than the sum of its proper divisors (80462238).

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

80028642 is a wasteful number, since it uses less digits than its factorization.

80028642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36137.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 80028642 is about 8945.8729031884. The cubic root of 80028642 is about 430.9383546360.

The spelling of 80028642 in words is "eighty million, twenty-eight thousand, six hundred forty-two".

Divisors: 1 2 3 6 373 746 1119 2238 35759 71518 107277 214554 13338107 26676214 40014321 80028642