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670275629 = 1448946261
BaseRepresentation
bin100111111100111…
…001100000101101
31201201020112022022
4213330321200231
52333042310004
6150302155525
722416151232
oct4774714055
91651215268
10670275629
11314398001
12168582ba5
13a8b329ca
146503b789
153dca02be
hex27f3982d

670275629 has 4 divisors (see below), whose sum is σ = 670336380. Its totient is φ = 670214880.

The previous prime is 670275623. The next prime is 670275631. The reversal of 670275629 is 926572076.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 445125604 + 225150025 = 21098^2 + 15005^2 .

It is a cyclic number.

It is not a de Polignac number, because 670275629 - 28 = 670275373 is a prime.

It is a super-3 number, since 3×6702756293 (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670275629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670275623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8642 + ... + 37619.

It is an arithmetic number, because the mean of its divisors is an integer number (167584095).

Almost surely, 2670275629 is an apocalyptic number.

It is an amenable number.

670275629 is a deficient number, since it is larger than the sum of its proper divisors (60751).

670275629 is a wasteful number, since it uses less digits than its factorization.

670275629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60750.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 670275629 is about 25889.6819022560. The cubic root of 670275629 is about 875.1539882455.

The spelling of 670275629 in words is "six hundred seventy million, two hundred seventy-five thousand, six hundred twenty-nine".

Divisors: 1 14489 46261 670275629