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320302013 = 2931356287
BaseRepresentation
bin10011000101110…
…110101110111101
3211022201000202112
4103011312232331
51123444131023
651441103405
710636344053
oct2305665675
9738630675
10320302013
11154890709
128b327b65
1351488825
143077a1d3
151d1be478
hex13176bbd

320302013 has 8 divisors (see below), whose sum is σ = 342036480. Its totient is φ = 299280240.

The previous prime is 320301997. The next prime is 320302067. The reversal of 320302013 is 310203023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320302013 - 24 = 320301997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320302093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177245 + ... + 179042.

It is an arithmetic number, because the mean of its divisors is an integer number (42754560).

Almost surely, 2320302013 is an apocalyptic number.

It is an amenable number.

320302013 is a deficient number, since it is larger than the sum of its proper divisors (21734467).

320302013 is a wasteful number, since it uses less digits than its factorization.

320302013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356347.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 320302013 is about 17896.9833491569. The cubic root of 320302013 is about 684.2054922465.

Adding to 320302013 its reverse (310203023), we get a palindrome (630505036).

It can be divided in two parts, 32030 and 2013, that added together give a palindrome (34043).

The spelling of 320302013 in words is "three hundred twenty million, three hundred two thousand, thirteen".

Divisors: 1 29 31 899 356287 10332323 11044897 320302013