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670700007 = 348280247
BaseRepresentation
bin100111111110100…
…001000111100111
31201202001002110000
4213332201013213
52333144400012
6150315232343
722422566415
oct4776410747
91652032400
10670700007
1131465792a
121687486b3
13a8c50c13
146510c2b5
153dd35ddc
hex27fa11e7

670700007 has 10 divisors (see below), whose sum is σ = 1001910008. Its totient is φ = 447133284.

The previous prime is 670699993. The next prime is 670700027. The reversal of 670700007 is 700007076.

It is not a de Polignac number, because 670700007 - 214 = 670683623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670700027) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4140043 + ... + 4140204.

Almost surely, 2670700007 is an apocalyptic number.

670700007 is a deficient number, since it is larger than the sum of its proper divisors (331210001).

670700007 is an equidigital number, since it uses as much as digits as its factorization.

670700007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280259 (or 8280250 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 27.

The square root of 670700007 is about 25897.8764959601. The cubic root of 670700007 is about 875.3386474756.

The spelling of 670700007 in words is "six hundred seventy million, seven hundred thousand, seven".

Divisors: 1 3 9 27 81 8280247 24840741 74522223 223566669 670700007