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80317444 = 2244812
BaseRepresentation
bin1001100100110…
…00110000000100
312121010112211011
410302120300010
5131030124234
611545252004
71663454434
oct462306004
9177115734
1080317444
1141378759
1222a94004
1313841a1c
14a94a2c4
1570b7b64
hex4c98c04

80317444 has 9 divisors (see below), whose sum is σ = 140586901. Its totient is φ = 40149760.

The previous prime is 80317441. The next prime is 80317451. The reversal of 80317444 is 44471308.

The square root of 80317444 is 8962.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 63011844 + 17305600 = 7938^2 + 4160^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80317441) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15684 + ... + 20164.

Almost surely, 280317444 is an apocalyptic number.

80317444 is the 8962-nd square number.

It is an amenable number.

80317444 is a deficient number, since it is larger than the sum of its proper divisors (60269457).

80317444 is an frugal number, since it uses more digits than its factorization.

80317444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8966 (or 4483 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The cubic root of 80317444 is about 431.4561128023.

The spelling of 80317444 in words is "eighty million, three hundred seventeen thousand, four hundred forty-four".

Divisors: 1 2 4 4481 8962 17924 20079361 40158722 80317444