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302097081 = 31113704189
BaseRepresentation
bin10010000000011…
…010001010111001
3210001110010021210
4102000122022321
51104314101311
645550553333
710325532336
oct2200321271
9701403253
10302097081
11145587010
1285208849
134a783490
142c19b98d
151b7c53a6
hex1201a2b9

302097081 has 16 divisors (see below), whose sum is σ = 473215680. Its totient is φ = 169005120.

The previous prime is 302097041. The next prime is 302097083. The reversal of 302097081 is 180790203.

It is a happy number.

It is not a de Polignac number, because 302097081 - 214 = 302080697 is a prime.

It is a super-2 number, since 2×3020970812 = 182525292697441122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (302097083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351666 + ... + 352523.

It is an arithmetic number, because the mean of its divisors is an integer number (29575980).

Almost surely, 2302097081 is an apocalyptic number.

It is an amenable number.

302097081 is a deficient number, since it is larger than the sum of its proper divisors (171118599).

302097081 is a wasteful number, since it uses less digits than its factorization.

302097081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704216.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 302097081 is about 17380.9401644445. The cubic root of 302097081 is about 670.9891685888.

The spelling of 302097081 in words is "three hundred two million, ninety-seven thousand, eighty-one".

Divisors: 1 3 11 13 33 39 143 429 704189 2112567 7746079 9154457 23238237 27463371 100699027 302097081