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99274280101 = 128977016509
BaseRepresentation
bin101110001110100110…
…1010100110010100101
3100111020121001221200221
41130131031110302211
53111303203430401
6113334520204341
710113052313023
oct1343515246245
9314217057627
1099274280101
1139113819a97
12172a69096b1
139491366599
144b3a90d713
1528b06867a1
hex171d354ca5

99274280101 has 4 divisors (see below), whose sum is σ = 99351297900. Its totient is φ = 99197262304.

The previous prime is 99274280059. The next prime is 99274280107. The reversal of 99274280101 is 10108247299.

It is a happy number.

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 73151316225 + 26122963876 = 270465^2 + 161626^2 .

It is a cyclic number.

It is not a de Polignac number, because 99274280101 - 225 = 99240725669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99274280107) 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, 38506966 + ... + 38509543.

It is an arithmetic number, because the mean of its divisors is an integer number (24837824475).

Almost surely, 299274280101 is an apocalyptic number.

It is an amenable number.

99274280101 is a deficient number, since it is larger than the sum of its proper divisors (77017799).

99274280101 is a wasteful number, since it uses less digits than its factorization.

99274280101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77017798.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 99274280101 in words is "ninety-nine billion, two hundred seventy-four million, two hundred eighty thousand, one hundred one".

Divisors: 1 1289 77016509 99274280101