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142435044 = 223317233373
BaseRepresentation
bin10000111110101…
…10001011100100
3100221000110011000
420133112023210
5242430410134
622044513300
73346451343
oct1037261344
9327013130
10142435044
1173445614
123b84b830
13236807bb
1414cb9b5a
15c787e99
hex87d62e4

142435044 has 96 divisors (see below), whose sum is σ = 408119040. Its totient is φ = 42729984.

The previous prime is 142434991. The next prime is 142435063. The reversal of 142435044 is 440534241.

It is a happy number.

142435044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 142434999 and 142435017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40542 + ... + 43914.

It is an arithmetic number, because the mean of its divisors is an integer number (4251240).

Almost surely, 2142435044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142435044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204059520).

142435044 is an abundant number, since it is smaller than the sum of its proper divisors (265683996).

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

142435044 is a wasteful number, since it uses less digits than its factorization.

142435044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426 (or 3418 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 142435044 is about 11934.6153687498. The cubic root of 142435044 is about 522.2425877342.

Adding to 142435044 its reverse (440534241), we get a palindrome (582969285).

The spelling of 142435044 in words is "one hundred forty-two million, four hundred thirty-five thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 17 18 23 27 34 36 46 51 54 68 69 92 102 108 138 153 204 207 276 306 391 414 459 612 621 782 828 918 1173 1242 1564 1836 2346 2484 3373 3519 4692 6746 7038 10119 10557 13492 14076 20238 21114 30357 40476 42228 57341 60714 77579 91071 114682 121428 155158 172023 182142 229364 232737 310316 344046 364284 465474 516069 688092 698211 930948 1032138 1318843 1396422 1548207 2064276 2094633 2637686 2792844 3096414 3956529 4189266 5275372 6192828 7913058 8378532 11869587 15826116 23739174 35608761 47478348 71217522 142435044