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9100009901 = 41428951749
BaseRepresentation
bin10000111100110011…
…10010000110101101
3212111012021101210202
420132121302012231
5122114100304101
64102552443245
7441335544053
oct103631620655
925435241722
109100009901
11394a79a144
12191b6a9525
13b203c8458
1462480a1d3
15383d8436b
hex21e6721ad

9100009901 has 8 divisors (see below), whose sum is σ = 9324315000. Its totient is φ = 8875816960.

The previous prime is 9100009889. The next prime is 9100009939. The reversal of 9100009901 is 1099000019.

9100009901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1969051876 + 7130958025 = 44374^2 + 84445^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9100009901 - 210 = 9100008877 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 (9100009981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149975 + ... + 201723.

It is an arithmetic number, because the mean of its divisors is an integer number (1165539375).

Almost surely, 29100009901 is an apocalyptic number.

It is an amenable number.

9100009901 is a deficient number, since it is larger than the sum of its proper divisors (224305099).

9100009901 is a wasteful number, since it uses less digits than its factorization.

9100009901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56079.

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 9100009901 is about 95393.9720370213. The cubic root of 9100009901 is about 2087.7602358392.

The spelling of 9100009901 in words is "nine billion, one hundred million, nine thousand, nine hundred one".

Divisors: 1 41 4289 51749 175849 2121709 221951461 9100009901