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89805755 = 5132106279
BaseRepresentation
bin1010101101001…
…01001110111011
320020222121100002
411112211032323
5140442241010
612524503215
72140223234
oct526451673
9206877302
1089805755
1146769436
12260aab0b
13157b4700
14bcda08b
157d3e1a5
hex55a53bb

89805755 has 12 divisors (see below), whose sum is σ = 116695440. Its totient is φ = 66317472.

The previous prime is 89805743. The next prime is 89805757. The reversal of 89805755 is 55750898.

It is not a de Polignac number, because 89805755 - 24 = 89805739 is a prime.

It is a super-2 number, since 2×898057552 = 16130147262240050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89805757) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52295 + ... + 53984.

It is an arithmetic number, because the mean of its divisors is an integer number (9724620).

Almost surely, 289805755 is an apocalyptic number.

89805755 is a deficient number, since it is larger than the sum of its proper divisors (26889685).

89805755 is a wasteful number, since it uses less digits than its factorization.

89805755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106310 (or 106297 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 47.

The square root of 89805755 is about 9476.5898402326. The cubic root of 89805755 is about 447.8178385556.

The spelling of 89805755 in words is "eighty-nine million, eight hundred five thousand, seven hundred fifty-five".

Divisors: 1 5 13 65 169 845 106279 531395 1381627 6908135 17961151 89805755