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1442132213 = 2965777561
BaseRepresentation
bin101010111110101…
…0011000011110101
310201111121220111012
41111331103003311
510423141212323
6355033522005
750510631044
oct12575230365
93644556435
101442132213
11680056305
12342b73305
1319ca10992
14d975c55b
1586918678
hex55f530f5

1442132213 has 8 divisors (see below), whose sum is σ = 1492285080. Its totient is φ = 1392007680.

The previous prime is 1442132203. The next prime is 1442132227. The reversal of 1442132213 is 3122312441.

It can be written as a sum of positive squares in 4 ways, for example, as 473802289 + 968329924 = 21767^2 + 31118^2 .

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 1442132213 - 212 = 1442128117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442132203) 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, 186953 + ... + 194513.

It is an arithmetic number, because the mean of its divisors is an integer number (186535635).

Almost surely, 21442132213 is an apocalyptic number.

It is an amenable number.

1442132213 is a deficient number, since it is larger than the sum of its proper divisors (50152867).

1442132213 is an equidigital number, since it uses as much as digits as its factorization.

1442132213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14167.

The product of its digits is 1152, while the sum is 23.

The square root of 1442132213 is about 37975.4159029233. The cubic root of 1442132213 is about 1129.8003179154.

Adding to 1442132213 its reverse (3122312441), we get a palindrome (4564444654).

The spelling of 1442132213 in words is "one billion, four hundred forty-two million, one hundred thirty-two thousand, two hundred thirteen".

Divisors: 1 29 6577 7561 190733 219269 49728697 1442132213