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142230344232 = 23343449306949
BaseRepresentation
bin1000010001110110010…
…1101101001000101000
3111121010021111002212010
42010131211231020220
54312241432003412
6145201213515520
713163412656424
oct2043545551050
9447107432763
10142230344232
1155357359839
12236947a2ba0
1310548989202
146c53927b84
153a7693433c
hex211d96d228

142230344232 has 64 divisors (see below), whose sum is σ = 364656600000. Its totient is φ = 46204268544.

The previous prime is 142230344219. The next prime is 142230344233. The reversal of 142230344232 is 232443032241.

It is a self number, because there is not a number n which added to its sum of digits gives 142230344232.

It is not an unprimeable number, because it can be changed into a prime (142230344233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309894 + ... + 616842.

It is an arithmetic number, because the mean of its divisors is an integer number (5697759375).

Almost surely, 2142230344232 is an apocalyptic number.

142230344232 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 142230344232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182328300000).

142230344232 is an abundant number, since it is smaller than the sum of its proper divisors (222426255768).

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

142230344232 is a wasteful number, since it uses less digits than its factorization.

142230344232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307450 (or 307446 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 142230344232 its reverse (232443032241), we get a palindrome (374673376473).

The spelling of 142230344232 in words is "one hundred forty-two billion, two hundred thirty million, three hundred forty-four thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 43 86 129 172 258 344 449 516 898 1032 1347 1796 2694 3592 5388 10776 19307 38614 57921 77228 115842 154456 231684 306949 463368 613898 920847 1227796 1841694 2455592 3683388 7366776 13198807 26397614 39596421 52795228 79192842 105590456 137820101 158385684 275640202 316771368 413460303 551280404 826920606 1102560808 1653841212 3307682424 5926264343 11852528686 17778793029 23705057372 35557586058 47410114744 71115172116 142230344232