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670270863 = 3229975649
BaseRepresentation
bin100111111100111…
…000010110001111
31201201020021202210
4213330320112033
52333042131423
6150302121503
722416131313
oct4774702617
91651207683
10670270863
11314394469
12168580293
13a8b307a2
1465039b43
153dc9db93
hex27f3858f

670270863 has 8 divisors (see below), whose sum is σ = 897598000. Its totient is φ = 444895488.

The previous prime is 670270813. The next prime is 670270949. The reversal of 670270863 is 368072076.

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

It is not a de Polignac number, because 670270863 - 28 = 670270607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670270813) 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, 487138 + ... + 488511.

It is an arithmetic number, because the mean of its divisors is an integer number (112199750).

Almost surely, 2670270863 is an apocalyptic number.

670270863 is a deficient number, since it is larger than the sum of its proper divisors (227327137).

670270863 is a wasteful number, since it uses less digits than its factorization.

670270863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975881.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 670270863 is about 25889.5898577015. The cubic root of 670270863 is about 875.1519139775.

The spelling of 670270863 in words is "six hundred seventy million, two hundred seventy thousand, eight hundred sixty-three".

Divisors: 1 3 229 687 975649 2926947 223423621 670270863