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20111211200130 = 2358922932892091
BaseRepresentation
bin1001001001010100000011…
…00110010111111010000010
32122012121112212221211020220
410210222001212113322002
510114000230031401010
6110434543552043510
74143662363436021
oct444520146277202
978177485854226
1020111211200130
116454131473796
12230982bb33596
13b2b62c6c6cbb
144d75602488b8
1524d21347c970
hex124a81997e82

20111211200130 has 64 divisors (see below), whose sum is σ = 49022373916800. Its totient is φ = 5279575150080.

The previous prime is 20111211200123. The next prime is 20111211200147. The reversal of 20111211200130 is 3100211211102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 15834616 + ... + 17057475.

It is an arithmetic number, because the mean of its divisors is an integer number (765974592450).

Almost surely, 220111211200130 is an apocalyptic number.

20111211200130 is an abundant number, since it is smaller than the sum of its proper divisors (28911162716670).

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

20111211200130 is a wasteful number, since it uses less digits than its factorization.

20111211200130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32892419.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 20111211200130 its reverse (3100211211102), we get a palindrome (23211422411232).

The spelling of 20111211200130 in words is "twenty trillion, one hundred eleven billion, two hundred eleven million, two hundred thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 89 178 229 267 445 458 534 687 890 1145 1335 1374 2290 2670 3435 6870 20381 40762 61143 101905 122286 203810 305715 611430 32892091 65784182 98676273 164460455 197352546 328920910 493381365 986762730 2927396099 5854792198 7532288839 8782188297 14636980495 15064577678 17564376594 22596866517 29273960990 37661444195 43910941485 45193733034 75322888390 87821882970 112984332585 225968665170 670373706671 1340747413342 2011121120013 3351868533355 4022242240026 6703737066710 10055605600065 20111211200130