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1442042023 = 29431816389
BaseRepresentation
bin101010111110011…
…1101000010100111
310201111110022202211
41111330331002213
510423130321043
6355031544251
750510104102
oct12574750247
93644408684
101442042023
1167aaa4574
12342b2b087
1319c9ab906
14d9737739
15868eba9d
hex55f3d0a7

1442042023 has 16 divisors (see below), whose sum is σ = 1535133600. Its totient is φ = 1352211840.

The previous prime is 1442042003. The next prime is 1442042027. The reversal of 1442042023 is 3202402441.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1442042023 - 221 = 1439944871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442041985 and 1442042003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442042027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222513 + ... + 228901.

It is an arithmetic number, because the mean of its divisors is an integer number (95945850).

Almost surely, 21442042023 is an apocalyptic number.

1442042023 is a deficient number, since it is larger than the sum of its proper divisors (93091577).

1442042023 is a wasteful number, since it uses less digits than its factorization.

1442042023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1442042023 is about 37974.2284055911. The cubic root of 1442042023 is about 1129.7767651015.

Adding to 1442042023 its reverse (3202402441), we get a palindrome (4644444464).

The spelling of 1442042023 in words is "one billion, four hundred forty-two million, forty-two thousand, twenty-three".

Divisors: 1 29 43 181 1247 5249 6389 7783 185281 225707 274727 1156409 7967083 33535861 49725587 1442042023