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80194248 = 23321113809
BaseRepresentation
bin1001100011110…
…10101011001000
312120220021211100
410301322223020
5131012203443
611542501400
71662432321
oct461725310
9176807740
1080194248
11412a4142
1222a34860
13137ca924
14a917448
1570913d3
hex4c7aac8

80194248 has 24 divisors (see below), whose sum is σ = 217192950. Its totient is φ = 26731392.

The previous prime is 80194229. The next prime is 80194259. The reversal of 80194248 is 84249108.

It can be written as a sum of positive squares in only one way, i.e., 42224004 + 37970244 = 6498^2 + 6162^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×801942482 = 12862234824571008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556833 + ... + 556976.

Almost surely, 280194248 is an apocalyptic number.

It is an amenable number.

80194248 is an abundant number, since it is smaller than the sum of its proper divisors (136998702).

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

80194248 is a wasteful number, since it uses less digits than its factorization.

80194248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113821 (or 1113814 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 80194248 is about 8955.1241197428. The cubic root of 80194248 is about 431.2354016482.

The spelling of 80194248 in words is "eighty million, one hundred ninety-four thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 1113809 2227618 3341427 4455236 6682854 8910472 10024281 13365708 20048562 26731416 40097124 80194248