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1430220241 = 2389598669
BaseRepresentation
bin101010100111111…
…0110110111010001
310200200012201100001
41111033312313101
510412114021431
6353530330001
750304446212
oct12517666721
93620181301
101430220241
1167435a6aa
1233ab89901
1319a3cca88
14d7d3b409
1585863e61
hex553f6dd1

1430220241 has 4 divisors (see below), whose sum is σ = 1430821300. Its totient is φ = 1429619184.

The previous prime is 1430220137. The next prime is 1430220271. The reversal of 1430220241 is 1420220341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 340956225 + 1089264016 = 18465^2 + 33004^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430220241 - 211 = 1430218193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1430220271) 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 3 ways as a sum of consecutive naturals, for example, 296946 + ... + 301723.

It is an arithmetic number, because the mean of its divisors is an integer number (357705325).

Almost surely, 21430220241 is an apocalyptic number.

It is an amenable number.

1430220241 is a deficient number, since it is larger than the sum of its proper divisors (601059).

1430220241 is an equidigital number, since it uses as much as digits as its factorization.

1430220241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601058.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1430220241 is about 37818.2527491686. The cubic root of 1430220241 is about 1126.6810072032.

Adding to 1430220241 its reverse (1420220341), we get a palindrome (2850440582).

It can be divided in two parts, 14302 and 20241, that added together give a palindrome (34543).

The spelling of 1430220241 in words is "one billion, four hundred thirty million, two hundred twenty thousand, two hundred forty-one".

Divisors: 1 2389 598669 1430220241