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89993719 = 7910091129
BaseRepresentation
bin1010101110100…
…11000111110111
320021100011011201
411113103013313
5141014244334
612532513331
72141635234
oct527230767
9207304151
1089993719
1146887682
122617b847
131584c12a
14bd4878b
157d79c14
hex55d31f7

89993719 has 8 divisors (see below), whose sum is σ = 91304000. Its totient is φ = 88687872.

The previous prime is 89993689. The next prime is 89993723. The reversal of 89993719 is 91739998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89993719 - 27 = 89993591 is a prime.

It is a super-2 number, since 2×899937192 = 16197738918901922, which 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 89993719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89993789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79147 + ... + 80275.

It is an arithmetic number, because the mean of its divisors is an integer number (11413000).

Almost surely, 289993719 is an apocalyptic number.

89993719 is a deficient number, since it is larger than the sum of its proper divisors (1310281).

89993719 is a wasteful number, since it uses less digits than its factorization.

89993719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217.

The product of its digits is 1102248, while the sum is 55.

The square root of 89993719 is about 9486.5019369629. The cubic root of 89993719 is about 448.1300493379.

The spelling of 89993719 in words is "eighty-nine million, nine hundred ninety-three thousand, seven hundred nineteen".

Divisors: 1 79 1009 1129 79711 89191 1139161 89993719