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80988262 = 240494131
BaseRepresentation
bin1001101001111…
…00100001100110
312122101122000021
410310330201212
5131213111022
612011505354
72002250245
oct464744146
9178348007
1080988262
1141796753
122315825a
1313a18164
14aa8295c
15719b7c7
hex4d3c866

80988262 has 4 divisors (see below), whose sum is σ = 121482396. Its totient is φ = 40494130.

The previous prime is 80988253. The next prime is 80988263. The reversal of 80988262 is 26288908.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80988263) by changing a digit.

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 as a sum of consecutive naturals, namely, 20247064 + ... + 20247067.

It is an arithmetic number, because the mean of its divisors is an integer number (30370599).

Almost surely, 280988262 is an apocalyptic number.

80988262 is a deficient number, since it is larger than the sum of its proper divisors (40494134).

80988262 is a wasteful number, since it uses less digits than its factorization.

80988262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40494133.

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 80988262 is about 8999.3478652622. The cubic root of 80988262 is about 432.6539699277.

The spelling of 80988262 in words is "eighty million, nine hundred eighty-eight thousand, two hundred sixty-two".

Divisors: 1 2 40494131 80988262