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142203123404 = 221719457240841
BaseRepresentation
bin1000010001101111110…
…1110111011011001100
3111121001101021010220022
42010123331313123030
54312212444422104
6145154402241312
713162632414416
oct2043375673314
9447041233808
10142203123404
1155342a57391
1223687656238
1310543148204
146c5007d9b6
153a74358bbe
hex211bf776cc

142203123404 has 48 divisors (see below), whose sum is σ = 277970202720. Its totient is φ = 63258071040.

The previous prime is 142203123379. The next prime is 142203123407. The reversal of 142203123404 is 404321302241.

It is not an unprimeable number, because it can be changed into a prime (142203123407) 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, 470024 + ... + 710864.

It is an arithmetic number, because the mean of its divisors is an integer number (5791045890).

Almost surely, 2142203123404 is an apocalyptic number.

It is an amenable number.

142203123404 is a deficient number, since it is larger than the sum of its proper divisors (135767079316).

142203123404 is a wasteful number, since it uses less digits than its factorization.

142203123404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241338 (or 241336 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 142203123404 its reverse (404321302241), we get a palindrome (546524425645).

The spelling of 142203123404 in words is "one hundred forty-two billion, two hundred three million, one hundred twenty-three thousand, four hundred four".

Divisors: 1 2 4 17 19 34 38 68 76 323 457 646 914 1292 1828 7769 8683 15538 17366 31076 34732 147611 240841 295222 481682 590444 963364 4094297 4575979 8188594 9151958 16377188 18303916 77791643 110064337 155583286 220128674 311166572 440257348 1871093729 2091222403 3742187458 4182444806 7484374916 8364889612 35550780851 71101561702 142203123404