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1302400212 = 223108533351
BaseRepresentation
bin100110110100001…
…0000110011010100
310100202200210012220
41031220100303110
510131403301322
6333122542340
744163135111
oct11550206324
93322623186
101302400212
11609197613
123042079b0
13179a98619
14c4d87908
157951655c
hex4da10cd4

1302400212 has 12 divisors (see below), whose sum is σ = 3038933856. Its totient is φ = 434133400.

The previous prime is 1302400189. The next prime is 1302400213. The reversal of 1302400212 is 2120042031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1302400191 and 1302400200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302400213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54266664 + ... + 54266687.

It is an arithmetic number, because the mean of its divisors is an integer number (253244488).

Almost surely, 21302400212 is an apocalyptic number.

1302400212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1302400212 is an abundant number, since it is smaller than the sum of its proper divisors (1736533644).

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

1302400212 is a wasteful number, since it uses less digits than its factorization.

1302400212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108533358 (or 108533356 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1302400212 is about 36088.7823568488. The cubic root of 1302400212 is about 1092.0641558196.

Adding to 1302400212 its reverse (2120042031), we get a palindrome (3422442243).

The spelling of 1302400212 in words is "one billion, three hundred two million, four hundred thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 108533351 217066702 325600053 434133404 651200106 1302400212