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2230120421 = 19415874877
BaseRepresentation
bin1000010011101100…
…1110111111100101
312202102100212002122
42010323032333211
514031402323141
61005143115325
7106156465544
oct20473167745
95672325078
102230120421
11a44932531
12522a42b45
132970493a9
1417227c15b
15d0bbb64b
hex84ecefe5

2230120421 has 16 divisors (see below), whose sum is σ = 2409341760. Its totient is φ = 2057281920.

The previous prime is 2230120397. The next prime is 2230120441. The reversal of 2230120421 is 1240210322.

It is a cyclic number.

It is not a de Polignac number, because 2230120421 - 218 = 2229858277 is a prime.

It is a super-2 number, since 2×22301204212 = 9946874184322434482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2230120421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2230120441) 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 15 ways as a sum of consecutive naturals, for example, 454835 + ... + 459711.

It is an arithmetic number, because the mean of its divisors is an integer number (150583860).

Almost surely, 22230120421 is an apocalyptic number.

It is an amenable number.

2230120421 is a deficient number, since it is larger than the sum of its proper divisors (179221339).

2230120421 is a wasteful number, since it uses less digits than its factorization.

2230120421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2230120421 is about 47224.1508234928. The cubic root of 2230120421 is about 1306.5000725225.

Adding to 2230120421 its reverse (1240210322), we get a palindrome (3470330743).

The spelling of 2230120421 in words is "two billion, two hundred thirty million, one hundred twenty thousand, four hundred twenty-one".

Divisors: 1 19 41 587 779 4877 11153 24067 92663 199957 457273 2862799 3799183 54393181 117374759 2230120421