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121150145300 = 225219912894723
BaseRepresentation
bin111000011010100011…
…1001000001100010100
3102120201011101001020112
41300311013020030110
53441103414122200
6131353340022152
711516133146462
oct1606507101424
9376634331215
10121150145300
114741a10a328
121b590b31958
13b569574612
145c13db9832
153240e44535
hex1c351c8314

121150145300 has 72 divisors (see below), whose sum is σ = 264477864000. Its totient is φ = 48168933120.

The previous prime is 121150145209. The next prime is 121150145339. The reversal of 121150145300 is 3541051121.

It is a super-2 number, since 2×1211501453002 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25648739 + ... + 25653461.

Almost surely, 2121150145300 is an apocalyptic number.

121150145300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121150145300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132238932000).

121150145300 is an abundant number, since it is smaller than the sum of its proper divisors (143327718700).

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

121150145300 is a wasteful number, since it uses less digits than its factorization.

121150145300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6225 (or 6218 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 121150145300 its reverse (3541051121), we get a palindrome (124691196421).

The spelling of 121150145300 in words is "one hundred twenty-one billion, one hundred fifty million, one hundred forty-five thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 199 398 796 995 1289 1990 2578 3980 4723 4975 5156 6445 9446 9950 12890 18892 19900 23615 25780 32225 47230 64450 94460 118075 128900 236150 256511 472300 513022 939877 1026044 1282555 1879754 2565110 3759508 4699385 5130220 6087947 6412775 9398770 12175894 12825550 18797540 23496925 24351788 25651100 30439735 46993850 60879470 93987700 121758940 152198675 304397350 608794700 1211501453 2423002906 4846005812 6057507265 12115014530 24230029060 30287536325 60575072650 121150145300