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1442214220 = 225163442397
BaseRepresentation
bin101010111110110…
…0111000101001100
310201111210001222111
41111331213011030
510423201323340
6355035353404
750511422116
oct12575470514
93644701874
101442214220
11680101987
12342bb2864
1319ca3c0c5
14d97803b6
1586932aea
hex55f6714c

1442214220 has 24 divisors (see below), whose sum is σ = 3047237424. Its totient is φ = 573345216.

The previous prime is 1442214211. The next prime is 1442214229. The reversal of 1442214220 is 224122441.

It is an interprime number because it is at equal distance from previous prime (1442214211) and next prime (1442214229).

It is a junction number, because it is equal to n+sod(n) for n = 1442214191 and 1442214200.

It is not an unprimeable number, because it can be changed into a prime (1442214229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217939 + ... + 224458.

It is an arithmetic number, because the mean of its divisors is an integer number (126968226).

Almost surely, 21442214220 is an apocalyptic number.

1442214220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442214220 is an abundant number, since it is smaller than the sum of its proper divisors (1605023204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1442214220 is a wasteful number, since it uses less digits than its factorization.

1442214220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442569 (or 442567 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1442214220 is about 37976.4956255840. The cubic root of 1442214220 is about 1129.8217329142.

Adding to 1442214220 its reverse (224122441), we get a palindrome (1666336661).

The spelling of 1442214220 in words is "one billion, four hundred forty-two million, two hundred fourteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 163 326 652 815 1630 3260 442397 884794 1769588 2211985 4423970 8847940 72110711 144221422 288442844 360553555 721107110 1442214220