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80870135 = 535945053
BaseRepresentation
bin1001101000111…
…11101011110111
312122011121222012
410310133223313
5131200321020
612005154435
72001245663
oct464375367
9178147865
1080870135
1141715a25
12230bba1b
13139a6468
14aa518a3
1571767c5
hex4d1faf7

80870135 has 8 divisors (see below), whose sum is σ = 97316640. Its totient is φ = 64514464.

The previous prime is 80870131. The next prime is 80870147. The reversal of 80870135 is 53107808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80870135 - 22 = 80870131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80870131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20732 + ... + 24321.

It is an arithmetic number, because the mean of its divisors is an integer number (12164580).

Almost surely, 280870135 is an apocalyptic number.

80870135 is a deficient number, since it is larger than the sum of its proper divisors (16446505).

80870135 is a wasteful number, since it uses less digits than its factorization.

80870135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45417.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 80870135 is about 8992.7823836675. The cubic root of 80870135 is about 432.4435156279.

The spelling of 80870135 in words is "eighty million, eight hundred seventy thousand, one hundred thirty-five".

Divisors: 1 5 359 1795 45053 225265 16174027 80870135