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70849727 = 13171947359
BaseRepresentation
bin1000011100100…
…01010010111111
311221022112112222
410032101102333
5121114142402
611010315555
71520132654
oct416212277
9157275488
1070849727
1136aa14a3
121b888bbb
13118a8520
1495a3c2b
1563477a2
hex43914bf

70849727 has 32 divisors (see below), whose sum is σ = 87091200. Its totient is φ = 56913408.

The previous prime is 70849703. The next prime is 70849739. The reversal of 70849727 is 72794807.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70849727 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 (70849027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197174 + ... + 197532.

It is an arithmetic number, because the mean of its divisors is an integer number (2721600).

Almost surely, 270849727 is an apocalyptic number.

70849727 is a deficient number, since it is larger than the sum of its proper divisors (16241473).

70849727 is a wasteful number, since it uses less digits than its factorization.

70849727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 70849727 is about 8417.2279878829. The cubic root of 70849727 is about 413.7894309862.

The spelling of 70849727 in words is "seventy million, eight hundred forty-nine thousand, seven hundred twenty-seven".

Divisors: 1 13 17 19 47 221 247 323 359 611 799 893 4199 4667 6103 6821 10387 11609 15181 16873 79339 88673 115957 197353 219349 286841 320587 1507441 3728933 4167631 5449979 70849727