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302131244131 = 2729110711339
BaseRepresentation
bin1000110010110000110…
…11001110110001100011
31001212212001020110001221
410121120123032301203
514422231044303011
6350444105035511
730554044126153
oct4313033166143
91055761213057
10302131244131
11107151235592
124a67b185b97
132264c538b02
14108a2202763
157cd4848971
hex46586cec63

302131244131 has 4 divisors (see below), whose sum is σ = 302241958200. Its totient is φ = 302020530064.

The previous prime is 302131244123. The next prime is 302131244143. The reversal of 302131244131 is 131442131203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131442131203 = 947138798449.

It is a cyclic number.

It is not a de Polignac number, because 302131244131 - 23 = 302131244123 is a prime.

It is a super-2 number, since 2×3021312441312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 302131244096 and 302131244105.

It is not an unprimeable number, because it can be changed into a prime (302131245131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55352941 + ... + 55358398.

It is an arithmetic number, because the mean of its divisors is an integer number (75560489550).

Almost surely, 2302131244131 is an apocalyptic number.

302131244131 is a deficient number, since it is larger than the sum of its proper divisors (110714069).

302131244131 is a wasteful number, since it uses less digits than its factorization.

302131244131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110714068.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 302131244131 its reverse (131442131203), we get a palindrome (433573375334).

The spelling of 302131244131 in words is "three hundred two billion, one hundred thirty-one million, two hundred forty-four thousand, one hundred thirty-one".

Divisors: 1 2729 110711339 302131244131