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89729201 = 281319321
BaseRepresentation
bin1010101100100…
…10100010110001
320020211201022202
411112102202301
5140432313301
612523112545
72136454112
oct526224261
9206751282
1089729201
1146716971
1226072755
1315788903
14bcba209
157d2666b
hex55928b1

89729201 has 4 divisors (see below), whose sum is σ = 90048804. Its totient is φ = 89409600.

The previous prime is 89729149. The next prime is 89729239. The reversal of 89729201 is 10292798.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78304801 + 11424400 = 8849^2 + 3380^2 .

It is a cyclic number.

It is not a de Polignac number, because 89729201 - 26 = 89729137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89723201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159380 + ... + 159941.

It is an arithmetic number, because the mean of its divisors is an integer number (22512201).

Almost surely, 289729201 is an apocalyptic number.

It is an amenable number.

89729201 is a deficient number, since it is larger than the sum of its proper divisors (319603).

89729201 is a wasteful number, since it uses less digits than its factorization.

89729201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319602.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 89729201 is about 9472.5498679078. The cubic root of 89729201 is about 447.6905564654.

The spelling of 89729201 in words is "eighty-nine million, seven hundred twenty-nine thousand, two hundred one".

Divisors: 1 281 319321 89729201