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670030007 = 2923104483
BaseRepresentation
bin100111111011111…
…101100010110111
31201200210001101012
4213323331202313
52333011430012
6150253022435
722414106153
oct4773754267
91650701335
10670030007
1131423a509
12168484a1b
13a8a77c7a
1464db6063
153dc52622
hex27efd8b7

670030007 has 4 divisors (see below), whose sum is σ = 693134520. Its totient is φ = 646925496.

The previous prime is 670029973. The next prime is 670030069. The reversal of 670030007 is 700030076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 670030007 - 218 = 669767863 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 (670030087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11552213 + ... + 11552270.

It is an arithmetic number, because the mean of its divisors is an integer number (173283630).

Almost surely, 2670030007 is an apocalyptic number.

670030007 is a deficient number, since it is larger than the sum of its proper divisors (23104513).

670030007 is a wasteful number, since it uses less digits than its factorization.

670030007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23104512.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 670030007 is about 25884.9378403735. The cubic root of 670030007 is about 875.0470753448.

The spelling of 670030007 in words is "six hundred seventy million, thirty thousand, seven".

Divisors: 1 29 23104483 670030007