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1212105014 = 22361487887
BaseRepresentation
bin100100000111111…
…0100000100110110
310010110210022111022
41020033310010312
54440244330024
6320135341142
742015502601
oct11017640466
93113708438
101212105014
1157222448a
12299b217b2
13164172203
14b6da1338
157162c35e
hex483f4136

1212105014 has 32 divisors (see below), whose sum is σ = 1934447616. Its totient is φ = 568386720.

The previous prime is 1212105007. The next prime is 1212105061. The reversal of 1212105014 is 4105012121.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1212104983 and 1212105001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366079 + ... + 1366965.

It is an arithmetic number, because the mean of its divisors is an integer number (60451488).

Almost surely, 21212105014 is an apocalyptic number.

1212105014 is a deficient number, since it is larger than the sum of its proper divisors (722342602).

1212105014 is a wasteful number, since it uses less digits than its factorization.

1212105014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1212105014 is about 34815.2985625572. The cubic root of 1212105014 is about 1066.2198147607.

Adding to 1212105014 its reverse (4105012121), we get a palindrome (5317117135).

The spelling of 1212105014 in words is "one billion, two hundred twelve million, one hundred five thousand, fourteen".

Divisors: 1 2 23 46 61 122 487 887 974 1403 1774 2806 11201 20401 22402 29707 40802 54107 59414 108214 431969 683261 863938 1244461 1366522 2488922 9935287 19870574 26350109 52700218 606052507 1212105014