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89992200169 = 31296772
BaseRepresentation
bin101001111001111110…
…0111111111111101001
322121021201012102202201
41103303330333333221
52433301000401134
6105201501100201
76334043036344
oct1236374777751
9277251172681
1089992200169
1135190283a53
1215536257661
138642320cb1
1444d9c6b45b
15251a83a914
hex14f3f3ffe9

89992200169 has 9 divisors (see below), whose sum is σ = 92998428951. Its totient is φ = 87080226360.

The previous prime is 89992200157. The next prime is 89992200247. The reversal of 89992200169 is 96100229998.

The square root of 89992200169 is 299987.

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., 61427144025 + 28565056144 = 247845^2 + 169012^2 .

It is not a de Polignac number, because 89992200169 - 231 = 87844716521 is a prime.

It is a super-2 number, since 2×899922001692 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89992000169) 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, 9294759 + ... + 9304435.

Almost surely, 289992200169 is an apocalyptic number.

89992200169 is the 299987-th square number.

89992200169 is the 149994-th centered octagonal number.

It is an amenable number.

89992200169 is a deficient number, since it is larger than the sum of its proper divisors (3006228782).

89992200169 is an frugal number, since it uses more digits than its factorization.

89992200169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19416 (or 9708 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 55.

The spelling of 89992200169 in words is "eighty-nine billion, nine hundred ninety-two million, two hundred thousand, one hundred sixty-nine".

Divisors: 1 31 961 9677 299987 9299597 93644329 2902974199 89992200169