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670340670 = 235211105899
BaseRepresentation
bin100111111101001…
…001011000111110
31201201100211112020
4213331021120332
52333101400140
6150303421010
722416541656
oct4775113076
91651324466
10670340670
1131443195a
121685b4766
13a8b564ac
1465057366
153dcb46d0
hex27f4963e

670340670 has 32 divisors (see below), whose sum is σ = 1616457600. Its totient is φ = 177908640.

The previous prime is 670340663. The next prime is 670340687. The reversal of 670340670 is 76043076.

It is a super-2 number, since 2×6703406702 = 898713227712097800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46620 + ... + 59279.

It is an arithmetic number, because the mean of its divisors is an integer number (50514300).

Almost surely, 2670340670 is an apocalyptic number.

670340670 is an abundant number, since it is smaller than the sum of its proper divisors (946116930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670340670 is a wasteful number, since it uses less digits than its factorization.

670340670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106120.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 670340670 is about 25890.9379899609. The cubic root of 670340670 is about 875.1822945357.

The spelling of 670340670 in words is "six hundred seventy million, three hundred forty thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 211 422 633 1055 1266 2110 3165 6330 105899 211798 317697 529495 635394 1058990 1588485 3176970 22344689 44689378 67034067 111723445 134068134 223446890 335170335 670340670