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70641716590 = 257064171659
BaseRepresentation
bin100000111001010010…
…0110000110101101110
320202100010212000112201
41001302210300311232
52124133234412330
652241413052114
75050365453334
oct1016244606556
9222303760481
1070641716590
1127a60453265
121183592703a
13687a38b203
1435c1d3bb54
151c86b1deca
hex1072930d6e

70641716590 has 8 divisors (see below), whose sum is σ = 127155089880. Its totient is φ = 28256686632.

The previous prime is 70641716567. The next prime is 70641716591. The reversal of 70641716590 is 9561714607.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 70641716590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70641716591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3532085820 + ... + 3532085839.

It is an arithmetic number, because the mean of its divisors is an integer number (15894386235).

Almost surely, 270641716590 is an apocalyptic number.

70641716590 is a deficient number, since it is larger than the sum of its proper divisors (56513373290).

70641716590 is a wasteful number, since it uses less digits than its factorization.

70641716590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7064171666.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 70641716590 in words is "seventy billion, six hundred forty-one million, seven hundred sixteen thousand, five hundred ninety".

Divisors: 1 2 5 10 7064171659 14128343318 35320858295 70641716590