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1442243013 = 31921331711
BaseRepresentation
bin101010111110110…
…1110000111000101
310201111211112110220
41111331232013011
510423203234023
6355040134553
750511602061
oct12575560705
93644745426
101442243013
11680121582
12343007459
1319ca4c243
14d978aaa1
158693b3e3
hex55f6e1c5

1442243013 has 12 divisors (see below), whose sum is σ = 2029529088. Its totient is φ = 910889640.

The previous prime is 1442243003. The next prime is 1442243021. The reversal of 1442243013 is 3103422441.

It is not a de Polignac number, because 1442243013 - 28 = 1442242757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442243003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 664773 + ... + 666938.

It is an arithmetic number, because the mean of its divisors is an integer number (169127424).

Almost surely, 21442243013 is an apocalyptic number.

It is an amenable number.

1442243013 is a deficient number, since it is larger than the sum of its proper divisors (587286075).

1442243013 is a wasteful number, since it uses less digits than its factorization.

1442243013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331752 (or 1331733 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1442243013 is about 37976.8747134358. The cubic root of 1442243013 is about 1129.8292516171.

Adding to 1442243013 its reverse (3103422441), we get a palindrome (4545665454).

The spelling of 1442243013 in words is "one billion, four hundred forty-two million, two hundred forty-three thousand, thirteen".

Divisors: 1 3 19 57 361 1083 1331711 3995133 25302509 75907527 480747671 1442243013