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670669413 = 31491500379
BaseRepresentation
bin100111111110011…
…001101001100101
31201201222112110220
4213332121221211
52333142410123
6150314434553
722422411261
oct4776315145
91651875426
10670669413
11314636947
12168732a59
13a8c4000b
14651010a1
153dd2bce3
hex27f99a65

670669413 has 8 divisors (see below), whose sum is σ = 900228000. Its totient is φ = 444111888.

The previous prime is 670669411. The next prime is 670669421. The reversal of 670669413 is 314966076.

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

It is not a de Polignac number, because 670669413 - 21 = 670669411 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670669411) 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, 749743 + ... + 750636.

It is an arithmetic number, because the mean of its divisors is an integer number (112528500).

Almost surely, 2670669413 is an apocalyptic number.

It is an amenable number.

670669413 is a deficient number, since it is larger than the sum of its proper divisors (229558587).

670669413 is a wasteful number, since it uses less digits than its factorization.

670669413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500531.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 670669413 is about 25897.2858230356. The cubic root of 670669413 is about 875.3253377408.

The spelling of 670669413 in words is "six hundred seventy million, six hundred sixty-nine thousand, four hundred thirteen".

Divisors: 1 3 149 447 1500379 4501137 223556471 670669413