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1206280030212 = 22341710310919507
BaseRepresentation
bin10001100011011011111…
…001001000100000000100
311021022121201200200220000
4101203123321020200010
5124230430141431322
62322053555241300
7153102513036015
oct21433371104004
94238551620800
101206280030212
114256426a1804
121759508a9230
13899a06abb0a
14425545cd00c
15215a11da3ac
hex118dbe48804

1206280030212 has 240 divisors, whose sum is σ = 3402472993920. Its totient is φ = 371309349888.

The previous prime is 1206280030211. The next prime is 1206280030253. The reversal of 1206280030212 is 2120300826021.

1206280030212 is a `hidden beast` number, since 1 + 2 + 0 + 628 + 0 + 0 + 30 + 2 + 1 + 2 = 666.

It is a super-2 number, since 2×12062800302122 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1206280030211) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 61828563 + ... + 61848069.

It is an arithmetic number, because the mean of its divisors is an integer number (14176970808).

Almost surely, 21206280030212 is an apocalyptic number.

1206280030212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1206280030212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701236496960).

1206280030212 is an abundant number, since it is smaller than the sum of its proper divisors (2196192963708).

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

1206280030212 is a wasteful number, since it uses less digits than its factorization.

1206280030212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19752 (or 19741 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1206280030212 its reverse (2120300826021), we get a palindrome (3326580856233).

The spelling of 1206280030212 in words is "one trillion, two hundred six billion, two hundred eighty million, thirty thousand, two hundred twelve".