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80570135 = 516114027
BaseRepresentation
bin1001100110101…
…10011100010111
312121121101110002
410303112130113
5131111221020
611554521515
71665556232
oct463263427
9177541402
1080570135
1141530598
1222b9629b
13138cca49
14a9b4419
157117975
hex4cd6717

80570135 has 4 divisors (see below), whose sum is σ = 96684168. Its totient is φ = 64456104.

The previous prime is 80570131. The next prime is 80570141. The reversal of 80570135 is 53107508.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80570135 - 22 = 80570131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80570098 and 80570107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80570131) 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, 8057009 + ... + 8057018.

It is an arithmetic number, because the mean of its divisors is an integer number (24171042).

Almost surely, 280570135 is an apocalyptic number.

80570135 is a deficient number, since it is larger than the sum of its proper divisors (16114033).

80570135 is a wasteful number, since it uses less digits than its factorization.

80570135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16114032.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 80570135 is about 8976.0868422715. The cubic root of 80570135 is about 431.9081148169.

The spelling of 80570135 in words is "eighty million, five hundred seventy thousand, one hundred thirty-five".

Divisors: 1 5 16114027 80570135