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142523458 = 27211294797
BaseRepresentation
bin10000111111010…
…11110001000010
3100221011221102121
420133223301002
5242441222313
622050434454
73350300200
oct1037536102
9327157377
10142523458
11734a5a90
123b892a2a
13236b1b0c
1414d00070
15c7a428d
hex87ebc42

142523458 has 96 divisors (see below), whose sum is σ = 289578240. Its totient is φ = 51932160.

The previous prime is 142523401. The next prime is 142523471. The reversal of 142523458 is 854325241.

142523458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (38400) is a multiple of the sum of its prime factors (200).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1469266 + ... + 1469362.

It is an arithmetic number, because the mean of its divisors is an integer number (3016440).

Almost surely, 2142523458 is an apocalyptic number.

142523458 is an abundant number, since it is smaller than the sum of its proper divisors (147054782).

142523458 is a wasteful number, since it uses less digits than its factorization.

142523458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 193 counting only the distinct ones).

The product of its digits is 38400, while the sum is 34.

The square root of 142523458 is about 11938.3188933786. The cubic root of 142523458 is about 522.3506229582.

Adding to 142523458 its reverse (854325241), we get a palindrome (996848699).

The spelling of 142523458 in words is "one hundred forty-two million, five hundred twenty-three thousand, four hundred fifty-eight".

Divisors: 1 2 7 11 14 22 29 47 49 58 77 94 97 98 154 194 203 319 329 406 517 539 638 658 679 1034 1067 1078 1358 1363 1421 2134 2233 2303 2726 2813 2842 3619 4466 4559 4606 4753 5626 7238 7469 9118 9506 9541 14938 14993 15631 19082 19691 25333 29986 30943 31262 31913 39382 50149 50666 52283 61886 63826 66787 100298 104566 104951 132211 133574 137837 209902 216601 223391 264422 275674 351043 433202 446782 702086 734657 925477 1454321 1469314 1516207 1850954 2457301 2908642 3032414 4914602 6478339 10180247 12956678 20360494 71261729 142523458