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80234980 = 2257573107
BaseRepresentation
bin1001100100001…
…00100111100100
312120222100200221
410302010213210
5131020004410
611543414124
71662662140
oct462044744
9176870627
1080234980
1141321801
1222a54344
1313813327
14a928220
15709d4da
hex4c849e4

80234980 has 24 divisors (see below), whose sum is σ = 192564288. Its totient is φ = 27509088.

The previous prime is 80234977. The next prime is 80234993. The reversal of 80234980 is 8943208.

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 7 ways as a sum of consecutive naturals, for example, 286414 + ... + 286693.

It is an arithmetic number, because the mean of its divisors is an integer number (8023512).

Almost surely, 280234980 is an apocalyptic number.

It is an amenable number.

80234980 is an abundant number, since it is smaller than the sum of its proper divisors (112329308).

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

80234980 is a wasteful number, since it uses less digits than its factorization.

80234980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573123 (or 573121 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 80234980 is about 8957.3980597046. The cubic root of 80234980 is about 431.3083998486.

The spelling of 80234980 in words is "eighty million, two hundred thirty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 573107 1146214 2292428 2865535 4011749 5731070 8023498 11462140 16046996 20058745 40117490 80234980