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80542253 = 117322023
BaseRepresentation
bin1001100110011…
…11101000101101
312121112222012102
410303033220231
5131104323003
611554144445
71665412031
oct463175055
9177488172
1080542253
1141511650
1222b82125
13138c014c
14a9a81c1
15710e588
hex4ccfa2d

80542253 has 4 divisors (see below), whose sum is σ = 87864288. Its totient is φ = 73220220.

The previous prime is 80542237. The next prime is 80542271. The reversal of 80542253 is 35224508.

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 80542253 - 24 = 80542237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80542213) 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, 3661001 + ... + 3661022.

It is an arithmetic number, because the mean of its divisors is an integer number (21966072).

Almost surely, 280542253 is an apocalyptic number.

It is an amenable number.

80542253 is a deficient number, since it is larger than the sum of its proper divisors (7322035).

80542253 is a wasteful number, since it uses less digits than its factorization.

80542253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7322034.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 80542253 is about 8974.5335811952. The cubic root of 80542253 is about 431.8582872083.

The spelling of 80542253 in words is "eighty million, five hundred forty-two thousand, two hundred fifty-three".

Divisors: 1 11 7322023 80542253