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70135633 = 281249593
BaseRepresentation
bin1000010111000…
…10111101010001
311212222021000001
410023202331101
5120423320013
610543130001
71511100031
oct413427521
9155867001
1070135633
1136653a37
121b5a3901
13116b8499
1494598c1
156255ddd
hex42e2f51

70135633 has 4 divisors (see below), whose sum is σ = 70385508. Its totient is φ = 69885760.

The previous prime is 70135627. The next prime is 70135657. The reversal of 70135633 is 33653107.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33653107 = 157214351.

It can be written as a sum of positive squares in 2 ways, for example, as 52896529 + 17239104 = 7273^2 + 4152^2 .

It is a cyclic number.

It is not a de Polignac number, because 70135633 - 213 = 70127441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70135603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124516 + ... + 125077.

It is an arithmetic number, because the mean of its divisors is an integer number (17596377).

Almost surely, 270135633 is an apocalyptic number.

It is an amenable number.

70135633 is a deficient number, since it is larger than the sum of its proper divisors (249875).

70135633 is a wasteful number, since it uses less digits than its factorization.

70135633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249874.

The product of its (nonzero) digits is 5670, while the sum is 28.

The square root of 70135633 is about 8374.7019648463. The cubic root of 70135633 is about 412.3945402887.

The spelling of 70135633 in words is "seventy million, one hundred thirty-five thousand, six hundred thirty-three".

Divisors: 1 281 249593 70135633