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1117097693 = 17278923561
BaseRepresentation
bin100001010010101…
…1000111011011101
32212212000102221122
41002211120323131
54241434111233
6302503140325
736453113405
oct10245307335
92785012848
101117097693
11523633038
122721446a5
1314a58906a
14a850d805
1568111d98
hex42958edd

1117097693 has 8 divisors (see below), whose sum is σ = 1183283640. Its totient is φ = 1050964480.

The previous prime is 1117097677. The next prime is 1117097701. The reversal of 1117097693 is 3967907111.

It can be written as a sum of positive squares in 4 ways, for example, as 211208089 + 905889604 = 14533^2 + 30098^2 .

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

It is not a de Polignac number, because 1117097693 - 24 = 1117097677 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117097393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35633 + ... + 59193.

It is an arithmetic number, because the mean of its divisors is an integer number (147910455).

Almost surely, 21117097693 is an apocalyptic number.

It is an amenable number.

1117097693 is a deficient number, since it is larger than the sum of its proper divisors (66185947).

1117097693 is a wasteful number, since it uses less digits than its factorization.

1117097693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26367.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 1117097693 is about 33423.0114292533. The cubic root of 1117097693 is about 1037.6010079817.

The spelling of 1117097693 in words is "one billion, one hundred seventeen million, ninety-seven thousand, six hundred ninety-three".

Divisors: 1 17 2789 23561 47413 400537 65711629 1117097693