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142022148220 = 225311491537369
BaseRepresentation
bin1000010001000100101…
…1100000000001111100
3111120120202201122121201
42010101023200001330
54311330132220340
6145124415305244
713155304225111
oct2042113400174
9446522648551
10142022148220
115525a889017
1223636b1b224
13105147c24c4
146c34010908
153a6350b79a
hex21112e007c

142022148220 has 48 divisors (see below), whose sum is σ = 309933792000. Its totient is φ = 54607311360.

The previous prime is 142022148211. The next prime is 142022148227. The reversal of 142022148220 is 22841220241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142022148227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 676305 + ... + 861064.

It is an arithmetic number, because the mean of its divisors is an integer number (6456954000).

Almost surely, 2142022148220 is an apocalyptic number.

142022148220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142022148220 is an abundant number, since it is smaller than the sum of its proper divisors (167911643780).

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

142022148220 is a wasteful number, since it uses less digits than its factorization.

142022148220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537558 (or 1537556 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

Adding to 142022148220 its reverse (22841220241), we get a palindrome (164863368461).

The spelling of 142022148220 in words is "one hundred forty-two billion, twenty-two million, one hundred forty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 149 155 298 310 596 620 745 1490 2980 4619 9238 18476 23095 46190 92380 1537369 3074738 6149476 7686845 15373690 30747380 47658439 95316878 190633756 229067981 238292195 458135962 476584390 916271924 953168780 1145339905 2290679810 4581359620 7101107411 14202214822 28404429644 35505537055 71011074110 142022148220