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99100201 = 731357537
BaseRepresentation
bin1011110100000…
…10011000101001
320220110210220211
411322002120221
5200332201301
613500021121
72312223604
oct572023051
9226423824
1099100201
1150a374a2
12292317a1
13176ba095
14d23933b
158a78051
hex5e82629

99100201 has 4 divisors (see below), whose sum is σ = 100457812. Its totient is φ = 97742592.

The previous prime is 99100187. The next prime is 99100217. The reversal of 99100201 is 10200199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10200199 = 29351731.

It can be written as a sum of positive squares in 2 ways, for example, as 22992025 + 76108176 = 4795^2 + 8724^2 .

It is a cyclic number.

It is not a de Polignac number, because 99100201 - 215 = 99067433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99100231) 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, 678696 + ... + 678841.

It is an arithmetic number, because the mean of its divisors is an integer number (25114453).

Almost surely, 299100201 is an apocalyptic number.

It is an amenable number.

99100201 is a deficient number, since it is larger than the sum of its proper divisors (1357611).

99100201 is a wasteful number, since it uses less digits than its factorization.

99100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357610.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 99100201 is about 9954.9083873233. The cubic root of 99100201 is about 462.7625211342.

The spelling of 99100201 in words is "ninety-nine million, one hundred thousand, two hundred one".

Divisors: 1 73 1357537 99100201