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70275005 = 52321632
BaseRepresentation
bin1000011000001…
…00111110111101
311220020100011222
410030010332331
5120442300010
610550123125
71512220253
oct414047675
9156210158
1070275005
1136739719
121b6504a5
1311736a58
1494945d3
156282355
hex4304fbd

70275005 has 18 divisors (see below), whose sum is σ = 88700094. Its totient is φ = 53445744.

The previous prime is 70274999. The next prime is 70275031. The reversal of 70275005 is 50057207.

It can be written as a sum of positive squares in only one way, i.e., 56220004 + 14055001 = 7498^2 + 3749^2 .

It is not a de Polignac number, because 70275005 - 210 = 70273981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 431054 + ... + 431216.

It is an arithmetic number, because the mean of its divisors is an integer number (4927783).

Almost surely, 270275005 is an apocalyptic number.

It is an amenable number.

70275005 is a deficient number, since it is larger than the sum of its proper divisors (18425089).

70275005 is an equidigital number, since it uses as much as digits as its factorization.

70275005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 26.

The square root of 70275005 is about 8383.0188476467. The cubic root of 70275005 is about 412.6675266892.

The spelling of 70275005 in words is "seventy million, two hundred seventy-five thousand, five".

Divisors: 1 5 23 115 163 529 815 2645 3749 18745 26569 86227 132845 431135 611087 3055435 14055001 70275005