Search a number
-
+
1430202221 = 7414983283
BaseRepresentation
bin101010100111111…
…0010011101101101
310200200011210121122
41111033302131231
510412112432341
6353530110325
750304342530
oct12517623555
93620153548
101430202221
11674348108
1233ab7b3a5
1319a3c4806
14d7d34a17
158585d94b
hex553f276d

1430202221 has 8 divisors (see below), whose sum is σ = 1674383424. Its totient is φ = 1195987680.

The previous prime is 1430202211. The next prime is 1430202223. The reversal of 1430202221 is 1222020341.

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

It is a cyclic number.

It is not a de Polignac number, because 1430202221 - 210 = 1430201197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1430202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430202223) 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 7 ways as a sum of consecutive naturals, for example, 2491355 + ... + 2491928.

It is an arithmetic number, because the mean of its divisors is an integer number (209297928).

Almost surely, 21430202221 is an apocalyptic number.

It is an amenable number.

1430202221 is a deficient number, since it is larger than the sum of its proper divisors (244181203).

1430202221 is an equidigital number, since it uses as much as digits as its factorization.

1430202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983331.

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

The square root of 1430202221 is about 37818.0145036727. The cubic root of 1430202221 is about 1126.6762753266.

Adding to 1430202221 its reverse (1222020341), we get a palindrome (2652222562).

The spelling of 1430202221 in words is "one billion, four hundred thirty million, two hundred two thousand, two hundred twenty-one".

Divisors: 1 7 41 287 4983283 34882981 204314603 1430202221