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142220043142 = 21091394693421
BaseRepresentation
bin1000010001110011111…
…0011010001110000110
3111121002120002202102021
42010130332122032012
54312231312340032
6145200205033354
713163226264202
oct2043476321606
9447076082367
10142220043142
1155351563441
122369125585a
13105467c05a8
146c52405b02
153a75a9c097
hex211cf9a386

142220043142 has 16 divisors (see below), whose sum is σ = 216836096400. Its totient is φ = 69950731680.

The previous prime is 142220043101. The next prime is 142220043149. The reversal of 142220043142 is 241340022241.

142220043142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142220043149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2316409 + ... + 2377012.

It is an arithmetic number, because the mean of its divisors is an integer number (13552256025).

Almost surely, 2142220043142 is an apocalyptic number.

142220043142 is a deficient number, since it is larger than the sum of its proper divisors (74616053258).

142220043142 is a wasteful number, since it uses less digits than its factorization.

142220043142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693671.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 142220043142 its reverse (241340022241), we get a palindrome (383560065383).

The spelling of 142220043142 in words is "one hundred forty-two billion, two hundred twenty million, forty-three thousand, one hundred forty-two".

Divisors: 1 2 109 139 218 278 15151 30302 4693421 9386842 511582889 652385519 1023165778 1304771038 71110021571 142220043142