Search a number
-
+
121230003102 = 23137349942667
BaseRepresentation
bin111000011100111011…
…1110000101110011110
3102120220201122020112220
41300321313300232132
53441234340044402
6131405311410210
711521123011165
oct1607167605636
9376821566486
10121230003102
11474601a370a
121b5b3823966
13b57cc85060
145c208463dc
153247e6adbc
hex1c39df0b9e

121230003102 has 64 divisors (see below), whose sum is σ = 265224288000. Its totient is φ = 36715970304.

The previous prime is 121230003061. The next prime is 121230003121. The reversal of 121230003102 is 201300032121.

It is a super-2 number, since 2×1212300031022 (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 31 ways as a sum of consecutive naturals, for example, 2819973 + ... + 2862639.

It is an arithmetic number, because the mean of its divisors is an integer number (4144129500).

Almost surely, 2121230003102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121230003102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132612144000).

121230003102 is an abundant number, since it is smaller than the sum of its proper divisors (143994284898).

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

121230003102 is a wasteful number, since it uses less digits than its factorization.

121230003102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43257.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121230003102 its reverse (201300032121), we get a palindrome (322530035223).

The spelling of 121230003102 in words is "one hundred twenty-one billion, two hundred thirty million, three thousand, one hundred two".

Divisors: 1 2 3 6 13 26 39 73 78 146 219 438 499 949 998 1497 1898 2847 2994 5694 6487 12974 19461 36427 38922 42667 72854 85334 109281 128001 218562 256002 473551 554671 947102 1109342 1420653 1664013 2841306 3114691 3328026 6229382 9344073 18688146 21290833 40490983 42581666 63872499 80981966 121472949 127744998 242945898 276780829 553561658 830342487 1554230809 1660684974 3108461618 4662692427 9325384854 20205000517 40410001034 60615001551 121230003102