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80243694 = 2324457983
BaseRepresentation
bin1001100100001…
…10101111101110
312120222210122200
410302012233232
5131020244234
611543522330
71663026426
oct462065756
9176883580
1080243694
1141328303
1222a593a6
131381729b
14a92b486
1570a0d99
hex4c86bee

80243694 has 12 divisors (see below), whose sum is σ = 173861376. Its totient is φ = 26747892.

The previous prime is 80243693. The next prime is 80243741. The reversal of 80243694 is 49634208.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80243693) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2228974 + ... + 2229009.

It is an arithmetic number, because the mean of its divisors is an integer number (14488448).

Almost surely, 280243694 is an apocalyptic number.

80243694 is an abundant number, since it is smaller than the sum of its proper divisors (93617682).

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

80243694 is a wasteful number, since it uses less digits than its factorization.

80243694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457991 (or 4457988 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 80243694 is about 8957.8844600720. The cubic root of 80243694 is about 431.3240135096.

The spelling of 80243694 in words is "eighty million, two hundred forty-three thousand, six hundred ninety-four".

Divisors: 1 2 3 6 9 18 4457983 8915966 13373949 26747898 40121847 80243694