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70223391686 = 2733923147863
BaseRepresentation
bin100000101100110100…
…0111110101111000110
320201020222200220122202
41001121220332233012
52122304142013221
652132110554502
75034125660240
oct1013150765706
9221228626582
1070223391686
11278663015a8
1211739808a32
136811801a96
143582567090
151c6003ad0b
hex1059a3ebc6

70223391686 has 16 divisors (see below), whose sum is σ = 120387320064. Its totient is φ = 30094648584.

The previous prime is 70223391683. The next prime is 70223391701. The reversal of 70223391686 is 68619332207.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 70223391686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70223391683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400991 + ... + 548853.

It is an arithmetic number, because the mean of its divisors is an integer number (7524207504).

Almost surely, 270223391686 is an apocalyptic number.

70223391686 is a deficient number, since it is larger than the sum of its proper divisors (50163928378).

70223391686 is a wasteful number, since it uses less digits than its factorization.

70223391686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181795.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 70223391686 in words is "seventy billion, two hundred twenty-three million, three hundred ninety-one thousand, six hundred eighty-six".

Divisors: 1 2 7 14 33923 67846 147863 237461 295726 474922 1035041 2070082 5015956549 10031913098 35111695843 70223391686