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2990221241 = 7520982007
BaseRepresentation
bin1011001000111011…
…0010011110111001
321201101121222101212
42302032302132321
522110444034431
61212414452505
7134046314120
oct26216623671
97641558355
102990221241
1112a49a1527
126b5504135
1338866c5a7
142051bcab7
151277b172b
hexb23b27b9

2990221241 has 8 divisors (see below), whose sum is σ = 3418093440. Its totient is φ = 2562523488.

The previous prime is 2990221229. The next prime is 2990221243. The reversal of 2990221241 is 1421220992.

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

It is not a de Polignac number, because 2990221241 - 222 = 2986026937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2990221198 and 2990221207.

It is not an unprimeable number, because it can be changed into a prime (2990221243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4541 + ... + 77466.

It is an arithmetic number, because the mean of its divisors is an integer number (427261680).

Almost surely, 22990221241 is an apocalyptic number.

It is an amenable number.

2990221241 is a deficient number, since it is larger than the sum of its proper divisors (427872199).

2990221241 is an equidigital number, since it uses as much as digits as its factorization.

2990221241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87223.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2990221241 is about 54682.9154398337. The cubic root of 2990221241 is about 1440.6808189143.

The spelling of 2990221241 in words is "two billion, nine hundred ninety million, two hundred twenty-one thousand, two hundred forty-one".

Divisors: 1 7 5209 36463 82007 574049 427174463 2990221241