Search a number
-
+
168880088861 = 1143388191997
BaseRepresentation
bin1001110101001000001…
…0011010011100011101
3121010220112200101211222
42131102002122130131
510231331300320421
6205325450223125
715126002033051
oct2352202323435
9533815611758
10168880088861
1165692453380
1228891724aa5
1312c04c24583
148261033c61
1545d637ecab
hex275209a71d

168880088861 has 16 divisors (see below), whose sum is σ = 188567932608. Its totient is φ = 149916681600.

The previous prime is 168880088843. The next prime is 168880088869.

168880088861 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 168880088861 - 214 = 168880072477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168880088794 and 168880088803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168880088869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1789715 + ... + 1881711.

It is an arithmetic number, because the mean of its divisors is an integer number (11785495788).

Almost surely, 2168880088861 is an apocalyptic number.

168880088861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

168880088861 is a deficient number, since it is larger than the sum of its proper divisors (19687843747).

168880088861 is a wasteful number, since it uses less digits than its factorization.

168880088861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95932.

The product of its (nonzero) digits is 9437184, while the sum is 62.

The spelling of 168880088861 in words is "one hundred sixty-eight billion, eight hundred eighty million, eighty-eight thousand, eight hundred sixty-one".

Divisors: 1 11 43 473 3881 42691 91997 166883 1011967 1835713 3955871 43514581 357040357 3927443927 15352735351 168880088861