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142423344234 = 23219495784011
BaseRepresentation
bin1000010010100100010…
…1111100010001101010
3111121121201122112002100
42010221011330101222
54313140334003414
6145232310314230
713201245310563
oct2045105742152
9447551575070
10142423344234
11554462a0576
1223729358976
13105799622b2
146c7140716a
153a88859609
hex212917c46a

142423344234 has 48 divisors (see below), whose sum is σ = 324894566880. Its totient is φ = 44966184480.

The previous prime is 142423344227. The next prime is 142423344251. The reversal of 142423344234 is 432443324241.

142423344234 is a `hidden beast` number, since 1 + 42 + 42 + 3 + 344 + 234 = 666.

It is a super-2 number, since 2×1424233442342 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1653289 + ... + 1737299.

It is an arithmetic number, because the mean of its divisors is an integer number (6768636810).

Almost surely, 2142423344234 is an apocalyptic number.

142423344234 is an abundant number, since it is smaller than the sum of its proper divisors (182471222646).

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

142423344234 is a wasteful number, since it uses less digits than its factorization.

142423344234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88995 (or 88992 counting only the distinct ones).

The product of its digits is 221184, while the sum is 36.

Adding to 142423344234 its reverse (432443324241), we get a palindrome (574866668475).

The spelling of 142423344234 in words is "one hundred forty-two billion, four hundred twenty-three million, three hundred forty-four thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 4957 9914 14871 29742 44613 84011 89226 94183 168022 188366 252033 282549 504066 565098 756099 847647 1512198 1596209 1695294 3192418 4788627 9577254 14365881 28731762 416442527 832885054 1249327581 2498655162 3747982743 7495965486 7912408013 15824816026 23737224039 47474448078 71211672117 142423344234