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142430223012 = 2237111061145283
BaseRepresentation
bin1000010010100110000…
…0001011101010100100
3111121122012120222222220
42010221200023222210
54313144114114022
6145233113552340
713201360630410
oct2045140135244
9447565528886
10142430223012
115544a169710
122372b7156b0
131057b20028c
146c722b7d40
153a8926785c
hex212980baa4

142430223012 has 96 divisors (see below), whose sum is σ = 414735842304. Its totient is φ = 36959740800.

The previous prime is 142430222983. The next prime is 142430223017. The reversal of 142430223012 is 210322034241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (142430223017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 907723 + ... + 1053005.

It is an arithmetic number, because the mean of its divisors is an integer number (4320165024).

Almost surely, 2142430223012 is an apocalyptic number.

142430223012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142430223012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207367921152).

142430223012 is an abundant number, since it is smaller than the sum of its proper divisors (272305619292).

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

142430223012 is a wasteful number, since it uses less digits than its factorization.

142430223012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146369 (or 146367 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 142430223012 its reverse (210322034241), we get a palindrome (352752257253).

The spelling of 142430223012 in words is "one hundred forty-two billion, four hundred thirty million, two hundred twenty-three thousand, twelve".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 1061 2122 3183 4244 6366 7427 11671 12732 14854 22281 23342 29708 35013 44562 46684 70026 81697 89124 140052 145283 163394 245091 290566 326788 435849 490182 581132 871698 980364 1016981 1598113 1743396 2033962 3050943 3196226 4067924 4794339 6101886 6392452 9588678 11186791 12203772 19177356 22373582 33560373 44747164 67120746 134241492 154145263 308290526 462435789 616581052 924871578 1079016841 1695597893 1849743156 2158033682 3237050523 3391195786 4316067364 5086793679 6474101046 6782391572 10173587358 11869185251 12948202092 20347174716 23738370502 35607555753 47476741004 71215111506 142430223012