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70497490605 = 3518797250031
BaseRepresentation
bin100000110100111111…
…0100101011010101101
320201222002110120200120
41001221332211122231
52123334324144410
652215221515153
75043664532403
oct1015176453255
9221862416616
1070497490605
1127996aa5133
12117b5572ab9
1368565314a9
1435aab17473
151c79130570
hex1069fa56ad

70497490605 has 16 divisors (see below), whose sum is σ = 112802436864. Its totient is φ = 37596511040.

The previous prime is 70497490597. The next prime is 70497490643. The reversal of 70497490605 is 50609479407.

It is not a de Polignac number, because 70497490605 - 23 = 70497490597 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156940 + ... + 406970.

It is an arithmetic number, because the mean of its divisors is an integer number (7050152304).

Almost surely, 270497490605 is an apocalyptic number.

It is an amenable number.

70497490605 is a deficient number, since it is larger than the sum of its proper divisors (42304946259).

70497490605 is a wasteful number, since it uses less digits than its factorization.

70497490605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268836.

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 70497490605 in words is "seventy billion, four hundred ninety-seven million, four hundred ninety thousand, six hundred five".

Divisors: 1 3 5 15 18797 56391 93985 250031 281955 750093 1250155 3750465 4699832707 14099498121 23499163535 70497490605