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1430214221 = 23591053953
BaseRepresentation
bin101010100111111…
…0101011001001101
310200200012102002002
41111033311121031
510412113323341
6353530242045
750304422522
oct12517653115
93620172062
101430214221
11674356127
1233ab86325
1319a3ca107
14d7d39149
158586229b
hex553f564d

1430214221 has 8 divisors (see below), whose sum is σ = 1517693760. Its totient is φ = 1344842752.

The previous prime is 1430214211. The next prime is 1430214223. The reversal of 1430214221 is 1224120341.

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

It is not a de Polignac number, because 1430214221 - 26 = 1430214157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1430214193 and 1430214202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430214223) 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, 525620 + ... + 528333.

It is an arithmetic number, because the mean of its divisors is an integer number (189711720).

Almost surely, 21430214221 is an apocalyptic number.

It is an amenable number.

1430214221 is a deficient number, since it is larger than the sum of its proper divisors (87479539).

1430214221 is a wasteful number, since it uses less digits than its factorization.

1430214221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054035.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1430214221 is about 37818.1731578880. The cubic root of 1430214221 is about 1126.6794264142.

Adding to 1430214221 its reverse (1224120341), we get a palindrome (2654334562).

The spelling of 1430214221 in words is "one billion, four hundred thirty million, two hundred fourteen thousand, two hundred twenty-one".

Divisors: 1 23 59 1357 1053953 24240919 62183227 1430214221