Search a number
-
+
80028816 = 2437238181
BaseRepresentation
bin1001100010100…
…10010010010000
312120120212220020
410301102102100
5130441410231
611535143440
71661143110
oct461222220
9176525806
1080028816
11411a091a
1222974b80
131377053a
14a8b3040
15705c396
hex4c52490

80028816 has 40 divisors (see below), whose sum is σ = 236276544. Its totient is φ = 22865280.

The previous prime is 80028811. The next prime is 80028821. The reversal of 80028816 is 61882008.

It is an interprime number because it is at equal distance from previous prime (80028811) and next prime (80028821).

It is a super-2 number, since 2×800288162 = 12809222780723712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80028811) 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, 118755 + ... + 119426.

Almost surely, 280028816 is an apocalyptic number.

It is an amenable number.

80028816 is an abundant number, since it is smaller than the sum of its proper divisors (156247728).

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

80028816 is a wasteful number, since it uses less digits than its factorization.

80028816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238199 (or 238193 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 80028816 is about 8945.8826283380. The cubic root of 80028816 is about 430.9386669543.

The spelling of 80028816 in words is "eighty million, twenty-eight thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 238181 476362 714543 952724 1429086 1667267 1905448 2858172 3334534 3810896 5001801 5716344 6669068 10003602 11432688 13338136 20007204 26676272 40014408 80028816