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1442530345 = 5476138427
BaseRepresentation
bin101010111111011…
…0100010000101001
310201112101010121211
41111332310100221
510423241432340
6355050233121
750514206554
oct12576642051
93645333554
101442530345
116802a8443
123431257a1
1319cb1cc69
14d982369b
15869965ea
hex55fb4429

1442530345 has 8 divisors (see below), whose sum is σ = 1767867264. Its totient is φ = 1129470384.

The previous prime is 1442530343. The next prime is 1442530357. The reversal of 1442530345 is 5430352441.

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 1442530345 - 21 = 1442530343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442530343) 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, 3068979 + ... + 3069448.

It is an arithmetic number, because the mean of its divisors is an integer number (220983408).

Almost surely, 21442530345 is an apocalyptic number.

It is an amenable number.

1442530345 is a deficient number, since it is larger than the sum of its proper divisors (325336919).

1442530345 is an equidigital number, since it uses as much as digits as its factorization.

1442530345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6138479.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 1442530345 is about 37980.6575114228. The cubic root of 1442530345 is about 1129.9042770091.

Adding to 1442530345 its reverse (5430352441), we get a palindrome (6872882786).

The spelling of 1442530345 in words is "one billion, four hundred forty-two million, five hundred thirty thousand, three hundred forty-five".

Divisors: 1 5 47 235 6138427 30692135 288506069 1442530345