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80533001 = 194238579
BaseRepresentation
bin1001100110011…
…01011000001001
312121112111111202
410303031120021
5131104024001
611554033545
71665343043
oct463153011
9177474452
1080533001
11415056aa
1222b788b5
13138b8b83
14a9a4a93
15710b96b
hex4ccd609

80533001 has 4 divisors (see below), whose sum is σ = 84771600. Its totient is φ = 76294404.

The previous prime is 80532973. The next prime is 80533007. The reversal of 80533001 is 10033508.

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 80533001 - 210 = 80531977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80533007) 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, 2119271 + ... + 2119308.

It is an arithmetic number, because the mean of its divisors is an integer number (21192900).

Almost surely, 280533001 is an apocalyptic number.

It is an amenable number.

80533001 is a deficient number, since it is larger than the sum of its proper divisors (4238599).

80533001 is a wasteful number, since it uses less digits than its factorization.

80533001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238598.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 80533001 is about 8974.0181078489. The cubic root of 80533001 is about 431.8417505222.

Adding to 80533001 its reverse (10033508), we get a palindrome (90566509).

The spelling of 80533001 in words is "eighty million, five hundred thirty-three thousand, one".

Divisors: 1 19 4238579 80533001