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1173070081 = 23286117827
BaseRepresentation
bin100010111101011…
…1010000100000001
310000202100010122001
41011322322010001
54400301220311
6312222544001
741032634251
oct10572720401
93022303561
101173070081
11552192a07
12288a38001
13159055a11
14b1b1d961
156cebb4c1
hex45eba101

1173070081 has 8 divisors (see below), whose sum is σ = 1224569664. Its totient is φ = 1121611920.

The previous prime is 1173070079. The next prime is 1173070109. The reversal of 1173070081 is 1800703711.

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

It is a cyclic number.

It is not a de Polignac number, because 1173070081 - 21 = 1173070079 is a prime.

It is a super-2 number, since 2×11730700812 = 2752186829874693122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1173070181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56890 + ... + 74716.

It is an arithmetic number, because the mean of its divisors is an integer number (153071208).

Almost surely, 21173070081 is an apocalyptic number.

It is an amenable number.

1173070081 is a deficient number, since it is larger than the sum of its proper divisors (51499583).

1173070081 is a wasteful number, since it uses less digits than its factorization.

1173070081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20711.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 1173070081 is about 34250.1106713540. The cubic root of 1173070081 is about 1054.6490993262.

Adding to 1173070081 its reverse (1800703711), we get a palindrome (2973773792).

The spelling of 1173070081 in words is "one billion, one hundred seventy-three million, seventy thousand, eighty-one".

Divisors: 1 23 2861 17827 65803 410021 51003047 1173070081