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168617100071 = 724088157153
BaseRepresentation
bin1001110100001001011…
…1001100001100100111
3121010020012211012001102
42131002113030030213
510230311434200241
6205243413350315
715116326462640
oct2350227141447
9533205735042
10168617100071
1165567a58a72
122881963839b
1312b925b4ac4
1482381366c7
1545bd23239b
hex27425cc327

168617100071 has 4 divisors (see below), whose sum is σ = 192705257232. Its totient is φ = 144528942912.

The previous prime is 168617100037. The next prime is 168617100101. The reversal of 168617100071 is 170001716861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170001716861 = 394409431029.

It is a cyclic number.

It is not a de Polignac number, because 168617100071 - 26 = 168617100007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168617099998 and 168617100034.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168617100271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12044078570 + ... + 12044078583.

It is an arithmetic number, because the mean of its divisors is an integer number (48176314308).

Almost surely, 2168617100071 is an apocalyptic number.

168617100071 is a deficient number, since it is larger than the sum of its proper divisors (24088157161).

168617100071 is an equidigital number, since it uses as much as digits as its factorization.

168617100071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24088157160.

The product of its (nonzero) digits is 14112, while the sum is 38.

The spelling of 168617100071 in words is "one hundred sixty-eight billion, six hundred seventeen million, one hundred thousand, seventy-one".

Divisors: 1 7 24088157153 168617100071