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142466142 = 237131931443
BaseRepresentation
bin10000111110111…
…01110001011110
3100221002000210210
420133131301132
5242432404032
622045313250
73346641120
oct1037356136
9327060723
10142466142
1173466a15
123b865826
13236919c0
1414cc7210
15c7922cc
hex87ddc5e

142466142 has 128 divisors (see below), whose sum is σ = 381911040. Its totient is φ = 34369920.

The previous prime is 142466119. The next prime is 142466147. The reversal of 142466142 is 241664241.

It is a happy number.

142466142 is nontrivially palindromic in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142466147) 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 63 ways as a sum of consecutive naturals, for example, 321373 + ... + 321815.

It is an arithmetic number, because the mean of its divisors is an integer number (2983680).

Almost surely, 2142466142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142466142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190955520).

142466142 is an abundant number, since it is smaller than the sum of its proper divisors (239444898).

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

142466142 is a wasteful number, since it uses less digits than its factorization.

142466142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518.

The product of its digits is 9216, while the sum is 30.

The square root of 142466142 is about 11935.9181465022. The cubic root of 142466142 is about 522.2805922349.

The spelling of 142466142 in words is "one hundred forty-two million, four hundred sixty-six thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 13 14 19 21 26 31 38 39 42 57 62 78 91 93 114 133 182 186 217 247 266 273 399 403 434 443 494 546 589 651 741 798 806 886 1178 1209 1302 1329 1482 1729 1767 2418 2658 2821 3101 3458 3534 4123 5187 5642 5759 6202 7657 8246 8417 8463 9303 10374 11518 12369 13733 15314 16834 16926 17277 18606 22971 24738 25251 27466 34554 40313 41199 45942 50502 53599 58919 80626 82398 96131 107198 109421 117838 120939 160797 176757 178529 192262 218842 241878 260927 288393 321594 328263 353514 357058 521854 535587 576786 656526 765947 782781 1071174 1249703 1531894 1565562 1826489 2297841 2499406 3392051 3652978 3749109 4595682 5479467 6784102 7498218 10176153 10958934 20352306 23744357 47488714 71233071 142466142