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70205008071 = 31117911885053
BaseRepresentation
bin100000101100010001…
…0110110100011000111
320201012201002221002010
41001120202312203013
52122234440224241
652130212545303
75033513502552
oct1013042664307
9221181087063
1070205008071
1127856995730
1211733622233
13680aa662c3
14357dd3d699
151c5d608d16
hex10588b68c7

70205008071 has 16 divisors (see below), whose sum is σ = 102686866560. Its totient is φ = 42310785120.

The previous prime is 70205008067. The next prime is 70205008079. The reversal of 70205008071 is 17080050207.

It is a happy number.

It is not a de Polignac number, because 70205008071 - 22 = 70205008067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70205008079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5936620 + ... + 5948433.

It is an arithmetic number, because the mean of its divisors is an integer number (6417929160).

Almost surely, 270205008071 is an apocalyptic number.

70205008071 is a deficient number, since it is larger than the sum of its proper divisors (32481858489).

70205008071 is a wasteful number, since it uses less digits than its factorization.

70205008071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11885246.

The product of its (nonzero) digits is 3920, while the sum is 30.

Adding to 70205008071 its reverse (17080050207), we get a palindrome (87285058278).

The spelling of 70205008071 in words is "seventy billion, two hundred five million, eight thousand, seventy-one".

Divisors: 1 3 11 33 179 537 1969 5907 11885053 35655159 130735583 392206749 2127424487 6382273461 23401669357 70205008071