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121410230250 = 23531714276673
BaseRepresentation
bin111000100010010011…
…1010001011111101010
3102121101021202201201110
41301010213101133222
53442122004332000
6131435230331150
711525441633601
oct1610447213752
9377337681643
10121410230250
1147542a00a71
121b644059ab6
13b5ab40843a
145c3a75ca38
153258bbb850
hex1c449d17ea

121410230250 has 128 divisors (see below), whose sum is σ = 321138784512. Its totient is φ = 30445670400.

The previous prime is 121410230219. The next prime is 121410230257. The reversal of 121410230250 is 52032014121.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121410230257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18190914 + ... + 18197586.

It is an arithmetic number, because the mean of its divisors is an integer number (2508896754).

Almost surely, 2121410230250 is an apocalyptic number.

121410230250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121410230250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160569392256).

121410230250 is an abundant number, since it is smaller than the sum of its proper divisors (199728554262).

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

121410230250 is a wasteful number, since it uses less digits than its factorization.

121410230250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8137 (or 8127 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 121410230250 its reverse (52032014121), we get a palindrome (173442244371).

The spelling of 121410230250 in words is "one hundred twenty-one billion, four hundred ten million, two hundred thirty thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 17 25 30 34 50 51 75 85 102 125 150 170 250 255 375 425 510 750 850 1275 1427 2125 2550 2854 4250 4281 6375 6673 7135 8562 12750 13346 14270 20019 21405 24259 33365 35675 40038 42810 48518 66730 71350 72777 100095 107025 113441 121295 145554 166825 178375 200190 214050 226882 242590 333650 340323 356750 363885 500475 535125 567205 606475 680646 727770 834125 1000950 1070250 1134410 1212950 1668250 1701615 1819425 2502375 2836025 3032375 3403230 3638850 5004750 5672050 6064750 8508075 9097125 9522371 14180125 17016150 18194250 19044742 28360250 28567113 42540375 47611855 57134226 85080750 95223710 142835565 161880307 238059275 285671130 323760614 476118550 485640921 714177825 809401535 971281842 1190296375 1428355650 1618803070 2380592750 2428204605 3570889125 4047007675 4856409210 7141778250 8094015350 12141023025 20235038375 24282046050 40470076750 60705115125 121410230250