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1670342660 = 225738930671
BaseRepresentation
bin110001110001111…
…0110100000000100
311022102001012100222
41203203312200010
511410101431120
6433425123512
756251451450
oct14343664004
94272035328
101670342660
11787957188
123a7489598
1320809454c
1411bba5660
159b996525
hex638f6804

1670342660 has 48 divisors (see below), whose sum is σ = 4019258880. Its totient is φ = 571198080.

The previous prime is 1670342621. The next prime is 1670342671. The reversal of 1670342660 is 662430761.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1670342660.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39125 + ... + 69795.

It is an arithmetic number, because the mean of its divisors is an integer number (83734560).

Almost surely, 21670342660 is an apocalyptic number.

1670342660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1670342660 is an abundant number, since it is smaller than the sum of its proper divisors (2348916220).

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

1670342660 is a wasteful number, since it uses less digits than its factorization.

1670342660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31076 (or 31074 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 1670342660 is about 40869.8257887161. The cubic root of 1670342660 is about 1186.5021358319.

The spelling of 1670342660 in words is "one billion, six hundred seventy million, three hundred forty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 389 778 1556 1945 2723 3890 5446 7780 10892 13615 27230 30671 54460 61342 122684 153355 214697 306710 429394 613420 858788 1073485 2146970 4293940 11931019 23862038 47724076 59655095 83517133 119310190 167034266 238620380 334068532 417585665 835171330 1670342660