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2990109901 = 20391466459
BaseRepresentation
bin1011001000111001…
…0111010011001101
321201101102022200011
42302032113103031
522110432004101
61212412233221
7134045341402
oct26216272315
97641368604
102990109901
1112a4925909
126b546b811
133886309cc
142051902a9
1512778d751
hexb23974cd

2990109901 has 4 divisors (see below), whose sum is σ = 2991578400. Its totient is φ = 2988641404.

The previous prime is 2990109847. The next prime is 2990109919. The reversal of 2990109901 is 1099010992.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2990109901 - 29 = 2990109389 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 (2990109961) 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 3 ways as a sum of consecutive naturals, for example, 731191 + ... + 735268.

It is an arithmetic number, because the mean of its divisors is an integer number (747894600).

Almost surely, 22990109901 is an apocalyptic number.

It is an amenable number.

2990109901 is a deficient number, since it is larger than the sum of its proper divisors (1468499).

2990109901 is a wasteful number, since it uses less digits than its factorization.

2990109901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468498.

The product of its (nonzero) digits is 13122, while the sum is 40.

The square root of 2990109901 is about 54681.8973792973. The cubic root of 2990109901 is about 1440.6629375849.

The spelling of 2990109901 in words is "two billion, nine hundred ninety million, one hundred nine thousand, nine hundred one".

Divisors: 1 2039 1466459 2990109901