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670503845 = 51112190979
BaseRepresentation
bin100111111101110…
…001001110100101
31201201200010100202
4213331301032211
52333122110340
6150311120245
722421121464
oct4775611645
91651603322
10670503845
11314533510
12168673085
13a8bb284b
146509a9db
153dce7c15
hex27f713a5

670503845 has 8 divisors (see below), whose sum is σ = 877750560. Its totient is φ = 487639120.

The previous prime is 670503829. The next prime is 670503857. The reversal of 670503845 is 548305076.

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

It is not a de Polignac number, because 670503845 - 24 = 670503829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 670503799 and 670503808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6095435 + ... + 6095544.

It is an arithmetic number, because the mean of its divisors is an integer number (109718820).

Almost surely, 2670503845 is an apocalyptic number.

It is an amenable number.

670503845 is a deficient number, since it is larger than the sum of its proper divisors (207246715).

670503845 is a wasteful number, since it uses less digits than its factorization.

670503845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12190995.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 670503845 is about 25894.0889972982. The cubic root of 670503845 is about 875.2533013593.

The spelling of 670503845 in words is "six hundred seventy million, five hundred three thousand, eight hundred forty-five".

Divisors: 1 5 11 55 12190979 60954895 134100769 670503845