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988141889 = 7220166161
BaseRepresentation
bin111010111001011…
…101100101000001
32112212100210211202
4322321131211001
54010431020024
6242015150545
733326032100
oct7271354501
92485323752
10988141889
11467864699
12236b15455
13129947957
1495342037
155bb3cbae
hex3ae5d941

988141889 has 6 divisors (see below), whose sum is σ = 1149471234. Its totient is φ = 846978720.

The previous prime is 988141879. The next prime is 988141937.

988141889 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 807696400 + 180445489 = 28420^2 + 13433^2 .

It is not a de Polignac number, because 988141889 - 28 = 988141633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988141879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10083032 + ... + 10083129.

It is an arithmetic number, because the mean of its divisors is an integer number (191578539).

Almost surely, 2988141889 is an apocalyptic number.

It is an amenable number.

988141889 is a deficient number, since it is larger than the sum of its proper divisors (161329345).

988141889 is a wasteful number, since it uses less digits than its factorization.

988141889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20166175 (or 20166168 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 56.

The square root of 988141889 is about 31434.7242551927. The cubic root of 988141889 is about 996.0315687187.

The spelling of 988141889 in words is "nine hundred eighty-eight million, one hundred forty-one thousand, eight hundred eighty-nine".

Divisors: 1 7 49 20166161 141163127 988141889