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99531893 is a prime number
BaseRepresentation
bin1011110111010…
…11110001110101
320221021202002102
411323223301311
5200440010033
613513151445
72316002306
oct573536165
9227252072
1099531893
115120186a
12293bb585
131780b716
14d30c7ad
158b10de8
hex5eebc75

99531893 has 2 divisors, whose sum is σ = 99531894. Its totient is φ = 99531892.

The previous prime is 99531829. The next prime is 99531919. The reversal of 99531893 is 39813599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96786244 + 2745649 = 9838^2 + 1657^2 .

It is a cyclic number.

It is not a de Polignac number, because 99531893 - 26 = 99531829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99533893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49765946 + 49765947.

It is an arithmetic number, because the mean of its divisors is an integer number (49765947).

Almost surely, 299531893 is an apocalyptic number.

It is an amenable number.

99531893 is a deficient number, since it is larger than the sum of its proper divisors (1).

99531893 is an equidigital number, since it uses as much as digits as its factorization.

99531893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 262440, while the sum is 47.

The square root of 99531893 is about 9976.5671951829. The cubic root of 99531893 is about 463.4334969115.

The spelling of 99531893 in words is "ninety-nine million, five hundred thirty-one thousand, eight hundred ninety-three".