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2230950821 = 11972090863
BaseRepresentation
bin1000010011111001…
…1001101110100101
312202110221001012012
42010332121232211
514032110411241
61005213004005
7106166524541
oct20476315645
95673831165
102230950821
11a4534a410
12523183605
1329727a358
14172416a21
15d0cd26eb
hex84f99ba5

2230950821 has 8 divisors (see below), whose sum is σ = 2458856064. Its totient is φ = 2007227520.

The previous prime is 2230950809. The next prime is 2230950857. The reversal of 2230950821 is 1280590322.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2230950821 is a prime.

It is a super-3 number, since 3×22309508213 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2230955821) 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, 1044365 + ... + 1046498.

It is an arithmetic number, because the mean of its divisors is an integer number (307357008).

Almost surely, 22230950821 is an apocalyptic number.

It is an amenable number.

2230950821 is a deficient number, since it is larger than the sum of its proper divisors (227905243).

2230950821 is a wasteful number, since it uses less digits than its factorization.

2230950821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090971.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 2230950821 is about 47232.9421167049. The cubic root of 2230950821 is about 1306.6622136964.

The spelling of 2230950821 in words is "two billion, two hundred thirty million, nine hundred fifty thousand, eight hundred twenty-one".

Divisors: 1 11 97 1067 2090863 22999493 202813711 2230950821