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889880669231 = 1701895228779
BaseRepresentation
bin11001111001100010000…
…01010110110000101111
310011001221022110211001212
430330301001112300233
5104034433422403411
61520445555025035
7121202033612321
oct14746101266057
93131838424055
10889880669231
1131343a490914
1212456b29b17b
1365bb914a518
14310db47d611
1518233e4b68b
hexcf31056c2f

889880669231 has 4 divisors (see below), whose sum is σ = 889886068200. Its totient is φ = 889875270264.

The previous prime is 889880669221. The next prime is 889880669239. The reversal of 889880669231 is 132966088988.

889880669231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-889880669231 is a prime.

It is a super-2 number, since 2×8898806692312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889880669239) 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, 2444201 + ... + 2784578.

It is an arithmetic number, because the mean of its divisors is an integer number (222471517050).

Almost surely, 2889880669231 is an apocalyptic number.

889880669231 is a deficient number, since it is larger than the sum of its proper divisors (5398969).

889880669231 is a wasteful number, since it uses less digits than its factorization.

889880669231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5398968.

The product of its (nonzero) digits is 71663616, while the sum is 68.

The spelling of 889880669231 in words is "eight hundred eighty-nine billion, eight hundred eighty million, six hundred sixty-nine thousand, two hundred thirty-one".

Divisors: 1 170189 5228779 889880669231