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2088403607161 = 419234492
BaseRepresentation
bin11110011000111110100…
…011100001111001111001
321101122112102211101210201
4132120332203201321321
5233204022310412121
64235222133042201
7303611405524054
oct36307643417171
97348472741721
102088403607161
11735761434353
122988b6186361
13121c217146b1
1473117755a9b
15394ce11de91
hex1e63e8e1e79

2088403607161 has 9 divisors (see below), whose sum is σ = 2094006894031. Its totient is φ = 2082815285584.

The previous prime is 2088403607077. The next prime is 2088403607167. The reversal of 2088403607161 is 1617063048802.

It is a happy number.

The square root of 2088403607161 is 1445131.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10884957561 + 2077518649600 = 104331^2 + 1441360^2 .

It is not a de Polignac number, because 2088403607161 - 225 = 2088370052729 is a prime.

It is a super-2 number, since 2×20884036071612 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2088403607167) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 605508165 + ... + 605511613.

Almost surely, 22088403607161 is an apocalyptic number.

2088403607161 is the 1445131-st square number.

2088403607161 is the 722566-th centered octagonal number.

It is an amenable number.

2088403607161 is a deficient number, since it is larger than the sum of its proper divisors (5603286870).

2088403607161 is an frugal number, since it uses more digits than its factorization.

2088403607161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7736 (or 3868 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 2088403607161 in words is "two trillion, eighty-eight billion, four hundred three million, six hundred seven thousand, one hundred sixty-one".

Divisors: 1 419 3449 175561 1445131 11895601 605509889 4984256819 2088403607161