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121303341420 = 22354347016799
BaseRepresentation
bin111000011111000111…
…1100001100101101100
3102121002211122012210220
41300332033201211230
53441412123411140
6131420451331340
711523003250422
oct1607617414554
9377084565726
10121303341420
1147498634898
121b6142b0b50
13b592222201
145c2a497112
15324e605bd0
hex1c3e3e196c

121303341420 has 48 divisors (see below), whose sum is σ = 347548185600. Its totient is φ = 31595288256.

The previous prime is 121303341413. The next prime is 121303341433. The reversal of 121303341420 is 24143303121.

It is a happy number.

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, 23505820 + ... + 23510979.

It is an arithmetic number, because the mean of its divisors is an integer number (7240587200).

Almost surely, 2121303341420 is an apocalyptic number.

121303341420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121303341420 is an abundant number, since it is smaller than the sum of its proper divisors (226244844180).

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

121303341420 is a wasteful number, since it uses less digits than its factorization.

121303341420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47016854 (or 47016852 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121303341420 its reverse (24143303121), we get a palindrome (145446644541).

The spelling of 121303341420 in words is "one hundred twenty-one billion, three hundred three million, three hundred forty-one thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 47016799 94033598 141050397 188067196 235083995 282100794 470167990 564201588 705251985 940335980 1410503970 2021722357 2821007940 4043444714 6065167071 8086889428 10108611785 12130334142 20217223570 24260668284 30325835355 40434447140 60651670710 121303341420