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142013111020 = 225112712381971
BaseRepresentation
bin1000010001000010100…
…1000001101011101100
3111120120010201111220121
42010100221001223230
54311320324023040
6145123453454324
713155134345434
oct2042051015354
9446503644817
10142013111020
1155255776260
1223633aa13a4
1310512979c51
146c32b3b2c4
153a62823c4a
hex2110a41aec

142013111020 has 48 divisors (see below), whose sum is σ = 326539777536. Its totient is φ = 51450552000.

The previous prime is 142013111017. The next prime is 142013111063. The reversal of 142013111020 is 20111310241.

It is a junction number, because it is equal to n+sod(n) for n = 142013110985 and 142013111003.

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, 1131366 + ... + 1250605.

It is an arithmetic number, because the mean of its divisors is an integer number (6802912032).

Almost surely, 2142013111020 is an apocalyptic number.

142013111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142013111020 is an abundant number, since it is smaller than the sum of its proper divisors (184526666516).

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

142013111020 is a wasteful number, since it uses less digits than its factorization.

142013111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382262 (or 2382260 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 142013111020 its reverse (20111310241), we get a palindrome (162124421261).

The spelling of 142013111020 in words is "one hundred forty-two billion, thirteen million, one hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 271 542 1084 1355 2710 2981 5420 5962 11924 14905 29810 59620 2381971 4763942 9527884 11909855 23819710 26201681 47639420 52403362 104806724 131008405 262016810 524033620 645514141 1291028282 2582056564 3227570705 6455141410 7100655551 12910282820 14201311102 28402622204 35503277755 71006555510 142013111020