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1422202321 = 5039282239
BaseRepresentation
bin101010011000101…
…0001010111010001
310200010010100211001
41110301101113101
510403040433241
6353042422001
750146343311
oct12461212721
93603110731
101422202321
1166a883721
12338361901
13198853447
14d6c51441
1584ccd431
hex54c515d1

1422202321 has 4 divisors (see below), whose sum is σ = 1422489600. Its totient is φ = 1421915044.

The previous prime is 1422202273. The next prime is 1422202357. The reversal of 1422202321 is 1232022241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1232022241 = 7316877017.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1422202321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1422202361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136081 + ... + 146158.

It is an arithmetic number, because the mean of its divisors is an integer number (355622400).

Almost surely, 21422202321 is an apocalyptic number.

It is an amenable number.

1422202321 is a deficient number, since it is larger than the sum of its proper divisors (287279).

1422202321 is an equidigital number, since it uses as much as digits as its factorization.

1422202321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287278.

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

The square root of 1422202321 is about 37712.0978069372. The cubic root of 1422202321 is about 1124.5716416255.

Adding to 1422202321 its reverse (1232022241), we get a palindrome (2654224562).

The spelling of 1422202321 in words is "one billion, four hundred twenty-two million, two hundred two thousand, three hundred twenty-one".

Divisors: 1 5039 282239 1422202321