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99508201 = 137654477
BaseRepresentation
bin1011110111001…
…01111111101001
320221020112120221
411323211333221
5200433230301
613512450041
72315543242
oct573457751
9227215527
1099508201
1151195a91
12293a9921
13178009c0
14d303cc9
158b08da1
hex5ee5fe9

99508201 has 4 divisors (see below), whose sum is σ = 107162692. Its totient is φ = 91853712.

The previous prime is 99508153. The next prime is 99508243. The reversal of 99508201 is 10280599.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10280599 = 71468657.

It can be written as a sum of positive squares in 2 ways, for example, as 66846976 + 32661225 = 8176^2 + 5715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-99508201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99508261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3827226 + ... + 3827251.

It is an arithmetic number, because the mean of its divisors is an integer number (26790673).

Almost surely, 299508201 is an apocalyptic number.

It is an amenable number.

99508201 is a deficient number, since it is larger than the sum of its proper divisors (7654491).

99508201 is a wasteful number, since it uses less digits than its factorization.

99508201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7654490.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 99508201 is about 9975.3797421452. The cubic root of 99508201 is about 463.3967229778.

The spelling of 99508201 in words is "ninety-nine million, five hundred eight thousand, two hundred one".

Divisors: 1 13 7654477 99508201