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89747577241 = 72427972
BaseRepresentation
bin101001110010101011…
…1110101100110011001
322120122122220022012021
41103211113311212121
52432300334432431
6105121322014441
76325012551100
oct1234527654631
9276578808167
1089747577241
1135075193143
1215488347421
138603741bba
1444b5591037
152504119b11
hex14e55f5999

89747577241 has 9 divisors (see below), whose sum is σ = 104402682399. Its totient is φ = 76924697304.

The previous prime is 89747577223. The next prime is 89747577263. The reversal of 89747577241 is 14277574798.

The square root of 89747577241 is 299579.

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., 86744975625 + 3002601616 = 294525^2 + 54796^2 .

It is not a de Polignac number, because 89747577241 - 25 = 89747577209 is a prime.

It is a super-2 number, since 2×897475772412 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89747577241.

It is not an unprimeable number, because it can be changed into a prime (89747577841) 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, 2075655 + ... + 2118451.

Almost surely, 289747577241 is an apocalyptic number.

89747577241 is the 299579-th square number.

89747577241 is the 149790-th centered octagonal number.

It is an amenable number.

89747577241 is a deficient number, since it is larger than the sum of its proper divisors (14655105158).

89747577241 is an frugal number, since it uses more digits than its factorization.

89747577241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85608 (or 42804 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 61.

The spelling of 89747577241 in words is "eighty-nine billion, seven hundred forty-seven million, five hundred seventy-seven thousand, two hundred forty-one".

Divisors: 1 7 49 42797 299579 2097053 1831583209 12821082463 89747577241