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9902207101 = 64115448061
BaseRepresentation
bin10010011100011011…
…11011000001111101
3221120002202020111011
421032031323001331
5130234431111401
64314330355221
7500246241313
oct111615730175
927502666434
109902207101
1142215a0836
121b0428bb11
13c1a66a457
1469d1880b3
153ce4e2451
hex24e37b07d

9902207101 has 4 divisors (see below), whose sum is σ = 9917655804. Its totient is φ = 9886758400.

The previous prime is 9902207059. The next prime is 9902207111. The reversal of 9902207101 is 1017022099.

9902207101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 9467484601 + 434722500 = 97301^2 + 20850^2 .

It is a cyclic number.

It is not a de Polignac number, because 9902207101 - 27 = 9902206973 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 (9902207111) 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, 7723390 + ... + 7724671.

It is an arithmetic number, because the mean of its divisors is an integer number (2479413951).

Almost surely, 29902207101 is an apocalyptic number.

It is an amenable number.

9902207101 is a deficient number, since it is larger than the sum of its proper divisors (15448703).

9902207101 is a wasteful number, since it uses less digits than its factorization.

9902207101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15448702.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 9902207101 is about 99509.8341924053. The cubic root of 9902207101 is about 2147.3887245579.

The spelling of 9902207101 in words is "nine billion, nine hundred two million, two hundred seven thousand, one hundred one".

Divisors: 1 641 15448061 9902207101