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142110203240 = 235171367152879
BaseRepresentation
bin1000010001011001101…
…1011001110101101000
3111120210220102022101202
42010112123121311220
54312020203000430
6145141242503332
713160423540225
oct2042633316550
9446726368352
10142110203240
11552a5561065
1223660504b48
1310529b13075
146c419b294c
153a6b101d45
hex21166d9d68

142110203240 has 64 divisors (see below), whose sum is σ = 338806540800. Its totient is φ = 53460825088.

The previous prime is 142110203231. The next prime is 142110203329. The reversal of 142110203240 is 42302011241.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 853121 + ... + 1005999.

It is an arithmetic number, because the mean of its divisors is an integer number (5293852200).

Almost surely, 2142110203240 is an apocalyptic number.

142110203240 is a gapful number since it is divisible by the number (10) 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 142110203240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169403270400).

142110203240 is an abundant number, since it is smaller than the sum of its proper divisors (196696337560).

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

142110203240 is a wasteful number, since it uses less digits than its factorization.

142110203240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154274 (or 154270 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 142110203240 its reverse (42302011241), we get a palindrome (184412214481).

The spelling of 142110203240 in words is "one hundred forty-two billion, one hundred ten million, two hundred three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 1367 2734 5468 6835 10936 13670 23239 27340 46478 54680 92956 116195 152879 185912 232390 305758 464780 611516 764395 929560 1223032 1528790 2598943 3057580 5197886 6115160 10395772 12994715 20791544 25989430 51978860 103957720 208985593 417971186 835942372 1044927965 1671884744 2089855930 3552755081 4179711860 7105510162 8359423720 14211020324 17763775405 28422040648 35527550810 71055101620 142110203240