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80994484 = 2255736353
BaseRepresentation
bin1001101001111…
…10000010110100
312122101221112201
410310332002310
5131213310414
612011554244
72002304344
oct464760264
9178357481
1080994484
11417a039a
122315b984
1313a1ac3c
14aa84d24
15719d574
hex4d3e0b4

80994484 has 12 divisors (see below), whose sum is σ = 141998724. Its totient is φ = 40423424.

The previous prime is 80994481. The next prime is 80994497. The reversal of 80994484 is 48449908.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14212900 + 66781584 = 3770^2 + 8172^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80994481) 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 in 3 ways as a sum of consecutive naturals, for example, 15949 + ... + 20404.

It is an arithmetic number, because the mean of its divisors is an integer number (11833227).

Almost surely, 280994484 is an apocalyptic number.

It is an amenable number.

80994484 is a deficient number, since it is larger than the sum of its proper divisors (61004240).

80994484 is a wasteful number, since it uses less digits than its factorization.

80994484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36914 (or 36912 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 80994484 is about 8999.6935503383. The cubic root of 80994484 is about 432.6650493278.

The spelling of 80994484 in words is "eighty million, nine hundred ninety-four thousand, four hundred eighty-four".

Divisors: 1 2 4 557 1114 2228 36353 72706 145412 20248621 40497242 80994484