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1442124111 = 319131193133
BaseRepresentation
bin101010111110101…
…0001000101001111
310201111121111101010
41111331101011033
510423140432421
6355033420303
750510565321
oct12575210517
93644544333
101442124111
1168005020a
12342b6a693
1319ca0a09c
14d9759611
1586916076
hex55f5114f

1442124111 has 16 divisors (see below), whose sum is σ = 2039495040. Its totient is φ = 903857760.

The previous prime is 1442124109. The next prime is 1442124113. The reversal of 1442124111 is 1114212441.

It is an interprime number because it is at equal distance from previous prime (1442124109) and next prime (1442124113).

It is not a de Polignac number, because 1442124111 - 21 = 1442124109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442124113) 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 15 ways as a sum of consecutive naturals, for example, 89100 + ... + 104033.

It is an arithmetic number, because the mean of its divisors is an integer number (127468440).

Almost surely, 21442124111 is an apocalyptic number.

1442124111 is a deficient number, since it is larger than the sum of its proper divisors (597370929).

1442124111 is a wasteful number, since it uses less digits than its factorization.

1442124111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193286.

The product of its digits is 256, while the sum is 21.

The square root of 1442124111 is about 37975.3092284974. The cubic root of 1442124111 is about 1129.7982021457.

Adding to 1442124111 its reverse (1114212441), we get a palindrome (2556336552).

The spelling of 1442124111 in words is "one billion, four hundred forty-two million, one hundred twenty-four thousand, one hundred eleven".

Divisors: 1 3 19 57 131 393 2489 7467 193133 579399 3669527 11008581 25300423 75901269 480708037 1442124111