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1212014213028 = 223233667061473
BaseRepresentation
bin10001101000110001101…
…011010011011110100100
311021212102100120100221100
4101220301223103132210
5124324201114304103
62324442554520100
7153364561554123
oct21506153233644
94255370510840
101212014213028
11428015476173
12176a91136030
138a3a56878b8
1442939da5aba
15217d98175a3
hex11a31ad37a4

1212014213028 has 18 divisors (see below), whose sum is σ = 3063702594134. Its totient is φ = 404004737664.

The previous prime is 1212014212993. The next prime is 1212014213051. The reversal of 1212014213028 is 8203124102121.

It is a happy number.

1212014213028 is a `hidden beast` number, since 1 + 2 + 1 + 201 + 421 + 30 + 2 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 946791273024 + 265222940004 = 973032^2 + 514998^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 1212014212992 and 1212014213010.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16833530701 + ... + 16833530772.

Almost surely, 21212014213028 is an apocalyptic number.

1212014213028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1212014213028 is an abundant number, since it is smaller than the sum of its proper divisors (1851688381106).

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

1212014213028 is a wasteful number, since it uses less digits than its factorization.

1212014213028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33667061483 (or 33667061478 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 1212014213028 its reverse (8203124102121), we get a palindrome (9415138315149).

The spelling of 1212014213028 in words is "one trillion, two hundred twelve billion, fourteen million, two hundred thirteen thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 33667061473 67334122946 101001184419 134668245892 202002368838 303003553257 404004737676 606007106514 1212014213028