Search a number
-
+
12100010000001 = 3711192145099711
BaseRepresentation
bin1011000000010100000011…
…0011000011111010000001
31120211202020111112111110120
42300011000303003322001
53041221310030000001
641422400131250453
72356124346000360
oct260050063037201
946752214474416
1012100010000001
113945649220070
121435090a49a29
1369a0452c0b91
142db9020c37d7
1515eb37e83236
hexb0140cc3e81

12100010000001 has 48 divisors (see below), whose sum is σ = 21228668264448. Its totient is φ = 5954892098400.

The previous prime is 12100009999981. The next prime is 12100010000017. The reversal of 12100010000001 is 10000001000121.

It is not a de Polignac number, because 12100010000001 - 26 = 12100009999937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12100010000041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72466465 + ... + 72633246.

It is an arithmetic number, because the mean of its divisors is an integer number (442263922176).

Almost surely, 212100010000001 is an apocalyptic number.

12100010000001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12100010000001 is a deficient number, since it is larger than the sum of its proper divisors (9128658264447).

12100010000001 is a wasteful number, since it uses less digits than its factorization.

12100010000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145099770 (or 145099751 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 12100010000001 its reverse (10000001000121), we get a palindrome (22100011000122).

The spelling of 12100010000001 in words is "twelve trillion, one hundred billion, ten million, one", and thus it is an aban number.

Divisors: 1 3 7 11 19 21 33 57 77 133 209 231 361 399 627 1083 1463 2527 3971 4389 7581 11913 27797 83391 145099711 435299133 1015697977 1596096821 2756894509 3047093931 4788290463 8270683527 11172677747 19298261563 30325839599 33518033241 52380995671 57894784689 90977518797 157142987013 212280877193 366666969697 576190952381 636842631579 1100000909091 1728572857143 4033336666667 12100010000001