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142404304430 = 25174324180833
BaseRepresentation
bin1000010010011111110…
…1010011111000101110
3111121120101211012101102
42010213331103320232
54313121000220210
6145230350243102
713200624421133
oct2044775237056
9447511735342
10142404304430
11554365766a3
1223722ab6492
1310575a26c3b
146c6ca8c58a
153a86d47ea5
hex2127f53e2e

142404304430 has 64 divisors (see below), whose sum is σ = 278873419968. Its totient is φ = 52146339840.

The previous prime is 142404304423. The next prime is 142404304451. The reversal of 142404304430 is 34403404241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 142404304393 and 142404304402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1721294 + ... + 1802126.

It is an arithmetic number, because the mean of its divisors is an integer number (4357397187).

Almost surely, 2142404304430 is an apocalyptic number.

142404304430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142404304430 is a deficient number, since it is larger than the sum of its proper divisors (136469115538).

142404304430 is a wasteful number, since it uses less digits than its factorization.

142404304430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81141.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 142404304430 its reverse (34403404241), we get a palindrome (176807708671).

The spelling of 142404304430 in words is "one hundred forty-two billion, four hundred four million, three hundred four thousand, four hundred thirty".

Divisors: 1 2 5 10 17 34 43 85 86 170 215 241 430 482 731 1205 1462 2410 3655 4097 7310 8194 10363 20485 20726 40970 51815 80833 103630 161666 176171 352342 404165 808330 880855 1374161 1761710 2748322 3475819 6870805 6951638 13741610 17379095 19480753 34758190 38961506 59088923 97403765 118177846 194807530 295444615 331172801 590889230 662345602 837672379 1655864005 1675344758 3311728010 4188361895 8376723790 14240430443 28480860886 71202152215 142404304430