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807280212 = 223149451499
BaseRepresentation
bin110000000111100…
…001111001010100
32002021001002021010
4300013201321110
53123130431322
6212034452220
726001524424
oct6007417124
92067032233
10807280212
11384763632
121a6434070
13cb3317cb
1479302484
154ad1420c
hex301e1e54

807280212 has 24 divisors (see below), whose sum is σ = 1896300000. Its totient is φ = 267286816.

The previous prime is 807280211. The next prime is 807280219. The reversal of 807280212 is 212082708.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 807280212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (807280211) 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 7 ways as a sum of consecutive naturals, for example, 223962 + ... + 227537.

It is an arithmetic number, because the mean of its divisors is an integer number (79012500).

Almost surely, 2807280212 is an apocalyptic number.

It is an amenable number.

807280212 is an abundant number, since it is smaller than the sum of its proper divisors (1089019788).

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

807280212 is a wasteful number, since it uses less digits than its factorization.

807280212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451655 (or 451653 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 807280212 is about 28412.6769594137. The cubic root of 807280212 is about 931.1252468231.

The spelling of 807280212 in words is "eight hundred seven million, two hundred eighty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 149 298 447 596 894 1788 451499 902998 1354497 1805996 2708994 5417988 67273351 134546702 201820053 269093404 403640106 807280212