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80824313 = 143956167
BaseRepresentation
bin1001101000101…
…00011111111001
312122002022010002
410310110133321
5131142334223
612004202345
72000665253
oct464243771
9178068102
1080824313
1141694559
12230993b5
131398b64b
14aa3ccd3
157167e28
hex4d147f9

80824313 has 4 divisors (see below), whose sum is σ = 80881920. Its totient is φ = 80766708.

The previous prime is 80824301. The next prime is 80824319. The reversal of 80824313 is 31342808.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80824313 - 210 = 80823289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80824319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26645 + ... + 29522.

It is an arithmetic number, because the mean of its divisors is an integer number (20220480).

Almost surely, 280824313 is an apocalyptic number.

It is an amenable number.

80824313 is a deficient number, since it is larger than the sum of its proper divisors (57607).

80824313 is a wasteful number, since it uses less digits than its factorization.

80824313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57606.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 80824313 is about 8990.2343128530. The cubic root of 80824313 is about 432.3618242821.

The spelling of 80824313 in words is "eighty million, eight hundred twenty-four thousand, three hundred thirteen".

Divisors: 1 1439 56167 80824313