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121340110430 = 25711224675807
BaseRepresentation
bin111000100000001101…
…1110010011001011110
3102121012101211021102002
41301000123302121132
53442001032013210
6131424243402302
711523630630620
oct1610033623136
9377171737362
10121340110430
1147507368a00
121b624683392
13b599a27216
145c31308c10
15325296a4a5
hex1c406f265e

121340110430 has 96 divisors (see below), whose sum is σ = 274527525888. Its totient is φ = 37798453440.

The previous prime is 121340110427. The next prime is 121340110447. The reversal of 121340110430 is 34011043121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20892587 + ... + 20898393.

It is an arithmetic number, because the mean of its divisors is an integer number (2859661728).

Almost surely, 2121340110430 is an apocalyptic number.

121340110430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121340110430 is an abundant number, since it is smaller than the sum of its proper divisors (153187415458).

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

121340110430 is a wasteful number, since it uses less digits than its factorization.

121340110430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8310 (or 8299 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121340110430 its reverse (34011043121), we get a palindrome (155351153551).

The spelling of 121340110430 in words is "one hundred twenty-one billion, three hundred forty million, one hundred ten thousand, four hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 121 154 242 385 605 770 847 1210 1694 2467 4235 4934 5807 8470 11614 12335 17269 24670 27137 29035 34538 40649 54274 58070 63877 81298 86345 127754 135685 172690 189959 203245 271370 298507 319385 379918 406490 447139 597014 638770 702647 894278 949795 1405294 1492535 1899590 2089549 2235695 2985070 3513235 4179098 4471390 4918529 7026470 9837058 10447745 14325869 20895490 24592645 28651738 49185290 71629345 100281083 143258690 157584559 200562166 315169118 501405415 787922795 1002810830 1103091913 1575845590 1733430149 2206183826 3466860298 5515459565 8667150745 11030919130 12134011043 17334301490 24268022086 60670055215 121340110430