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93505689369 = 321019292
BaseRepresentation
bin101011100010101011…
…1111001011100011001
322221100120110011212100
41113011113321130121
53012444424024434
6110542251234013
76520105150161
oct1270527713431
9287316404770
1093505689369
1136723584434
1216156a48909
138a822013a1
14475073b5a1
15267400e699
hex15c55f9719

93505689369 has 9 divisors (see below), whose sum is σ = 135065098623. Its totient is φ = 62336514672.

The previous prime is 93505689367. The next prime is 93505689427. The reversal of 93505689369 is 96398650539.

The square root of 93505689369 is 305787.

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

93505689369 is a `hidden beast` number, since 9 + 3 + 5 + 0 + 568 + 9 + 3 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 83846730969 + 9658958400 = 289563^2 + 98280^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 93505689369 - 21 = 93505689367 is a prime.

It is a super-2 number, since 2×935056893692 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (93505689367) 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, 866397 + ... + 968325.

Almost surely, 293505689369 is an apocalyptic number.

93505689369 is the 305787-th square number.

93505689369 is the 152894-th centered octagonal number.

It is an amenable number.

93505689369 is a deficient number, since it is larger than the sum of its proper divisors (41559409254).

93505689369 is an frugal number, since it uses more digits than its factorization.

93505689369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203864 (or 101932 counting only the distinct ones).

The product of its (nonzero) digits is 47239200, while the sum is 63.

The spelling of 93505689369 in words is "ninety-three billion, five hundred five million, six hundred eighty-nine thousand, three hundred sixty-nine".

Divisors: 1 3 9 101929 305787 917361 10389521041 31168563123 93505689369