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670371213 = 31831122041
BaseRepresentation
bin100111111101010…
…000110110001101
31201201102101102110
4213331100312031
52333103334323
6150304214233
722420030011
oct4775206615
91651371373
10670371213
113144528a6
1216860a379
13a8b67375
1465064541
153dcbd793
hex27f50d8d

670371213 has 8 divisors (see below), whose sum is σ = 894323776. Its totient is φ = 446666400.

The previous prime is 670371211. The next prime is 670371253. The reversal of 670371213 is 312173076.

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

It is not a de Polignac number, because 670371213 - 21 = 670371211 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 (670371211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55528 + ... + 66513.

It is an arithmetic number, because the mean of its divisors is an integer number (111790472).

Almost surely, 2670371213 is an apocalyptic number.

It is an amenable number.

670371213 is a deficient number, since it is larger than the sum of its proper divisors (223952563).

670371213 is a wasteful number, since it uses less digits than its factorization.

670371213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123875.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 670371213 is about 25891.5278228227. The cubic root of 670371213 is about 875.1955864275.

The spelling of 670371213 in words is "six hundred seventy million, three hundred seventy-one thousand, two hundred thirteen".

Divisors: 1 3 1831 5493 122041 366123 223457071 670371213