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670348245 = 3576384269
BaseRepresentation
bin100111111101001…
…011001111010101
31201201101012220210
4213331023033111
52333102120440
6150303520033
722416603030
oct4775131725
91651335823
10670348245
11314437616
121685b9019
13a8b59a88
146505a017
153dcb6a80
hex27f4b3d5

670348245 has 16 divisors (see below), whose sum is σ = 1225779840. Its totient is φ = 306444864.

The previous prime is 670348241. The next prime is 670348373. The reversal of 670348245 is 542843076.

It is a happy number.

It is not a de Polignac number, because 670348245 - 22 = 670348241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670348241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3192030 + ... + 3192239.

It is an arithmetic number, because the mean of its divisors is an integer number (76611240).

Almost surely, 2670348245 is an apocalyptic number.

It is an amenable number.

670348245 is a deficient number, since it is larger than the sum of its proper divisors (555431595).

670348245 is a wasteful number, since it uses less digits than its factorization.

670348245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6384284.

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 670348245 is about 25891.0842762523. The cubic root of 670348245 is about 875.1855911088.

The spelling of 670348245 in words is "six hundred seventy million, three hundred forty-eight thousand, two hundred forty-five".

Divisors: 1 3 5 7 15 21 35 105 6384269 19152807 31921345 44689883 95764035 134069649 223449415 670348245