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142042104452454 = 233114910771475841
BaseRepresentation
bin100000010010111111000001…
…001011011101010101100110
3200121221002111111001012010020
4200102333001023131111212
5122104204212214434304
61222033124132340010
741630126522524623
oct4022770113352546
9617832444035106
10142042104452454
1141293799a2a378
1213b20865474606
13613468901395b
142710c35a3334a
151164c93ae75d9
hex812fc12dd566

142042104452454 has 64 divisors (see below), whose sum is σ = 295244353382400. Its totient is φ = 45508195584000.

The previous prime is 142042104452453. The next prime is 142042104452483. The reversal of 142042104452454 is 454254401240241.

It is a super-2 number, since 2×1420421044524542 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142042104452453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298269574 + ... + 298745414.

It is an arithmetic number, because the mean of its divisors is an integer number (4613193021600).

Almost surely, 2142042104452454 is an apocalyptic number.

142042104452454 is an abundant number, since it is smaller than the sum of its proper divisors (153202248929946).

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

142042104452454 is a wasteful number, since it uses less digits than its factorization.

142042104452454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486797.

The product of its (nonzero) digits is 819200, while the sum is 42.

Adding to 142042104452454 its reverse (454254401240241), we get a palindrome (596296505692695).

The spelling of 142042104452454 in words is "one hundred forty-two trillion, forty-two billion, one hundred four million, four hundred fifty-two thousand, four hundred fifty-four".

Divisors: 1 2 3 6 31 62 93 149 186 298 447 894 4619 9238 10771 13857 21542 27714 32313 64626 333901 475841 667802 951682 1001703 1427523 1604879 2003406 2855046 3209758 4814637 9629274 14751071 29502142 44253213 49751249 70900309 88506426 99502498 141800618 149253747 212700927 298507494 425401854 2197909579 4395819158 5125283411 6593728737 10250566822 13187457474 15375850233 30751700466 158883785741 317767571482 476651357223 763667228239 953302714446 1527334456478 2291001684717 4582003369434 23673684075409 47347368150818 71021052226227 142042104452454