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302124133 = 1997151289
BaseRepresentation
bin10010000000100…
…000110001100101
3210001111111101201
4102000200301211
51104320433013
645551322501
710326004243
oct2200406145
9701444351
10302124133
111455a5373
1285220431
134a79289c
142c1a7793
151b7cd3dd
hex12020c65

302124133 has 4 divisors (see below), whose sum is σ = 302277420. Its totient is φ = 301970848.

The previous prime is 302124127. The next prime is 302124139. The reversal of 302124133 is 331421203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331421203 = 1132932931.

It is an interprime number because it is at equal distance from previous prime (302124127) and next prime (302124139).

It can be written as a sum of positive squares in 2 ways, for example, as 110523169 + 191600964 = 10513^2 + 13842^2 .

It is a cyclic number.

It is not a de Polignac number, because 302124133 - 29 = 302123621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 302124133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302124139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73648 + ... + 77641.

It is an arithmetic number, because the mean of its divisors is an integer number (75569355).

Almost surely, 2302124133 is an apocalyptic number.

It is an amenable number.

302124133 is a deficient number, since it is larger than the sum of its proper divisors (153287).

302124133 is a wasteful number, since it uses less digits than its factorization.

302124133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153286.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 302124133 is about 17381.7183557898. The cubic root of 302124133 is about 671.0091964302.

Adding to 302124133 its reverse (331421203), we get a palindrome (633545336).

The spelling of 302124133 in words is "three hundred two million, one hundred twenty-four thousand, one hundred thirty-three".

Divisors: 1 1997 151289 302124133