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107816171557 = 1777445713613
BaseRepresentation
bin110010001101001011…
…0000011100000100101
3101022021220010222221011
41210122112003200211
53231301414442212
6121310254422221
710534533223453
oct1443226034045
9338256128834
10107816171557
11417a7466516
1218a8b501971
13a222c3b223
14530b1559d3
152c105224a7
hex191a583825

107816171557 has 8 divisors (see below), whose sum is σ = 107908974936. Its totient is φ = 107723407872.

The previous prime is 107816171549. The next prime is 107816171579. The reversal of 107816171557 is 755171618701.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1384286436 + 106431885121 = 37206^2 + 326239^2 .

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 107816171557 - 23 = 107816171549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 107816171557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107816171537) 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, 7913283 + ... + 7926895.

It is an arithmetic number, because the mean of its divisors is an integer number (13488621867).

Almost surely, 2107816171557 is an apocalyptic number.

It is an amenable number.

107816171557 is a deficient number, since it is larger than the sum of its proper divisors (92803379).

107816171557 is a wasteful number, since it uses less digits than its factorization.

107816171557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19847.

The product of its (nonzero) digits is 411600, while the sum is 49.

The spelling of 107816171557 in words is "one hundred seven billion, eight hundred sixteen million, one hundred seventy-one thousand, five hundred fifty-seven".

Divisors: 1 1777 4457 13613 7920089 24190301 60673141 107816171557