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302011223131 = 4323330143849
BaseRepresentation
bin1000110010100010100…
…01011000110001011011
31001212112200101202012201
410121101101120301123
514422004333120011
6350424140351031
730551056016542
oct4312121306133
91055480352181
10302011223131
1110709a509a82
124a646b45477
1322630705477
14108902bd159
157cc903bcc1
hex4651458c5b

302011223131 has 8 divisors (see below), whose sum is σ = 310361079600. Its totient is φ = 293721654912.

The previous prime is 302011223117. The next prime is 302011223153. The reversal of 302011223131 is 131322110203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-302011223131 is a prime.

It is a super-2 number, since 2×3020112231312 (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 = 302011223099 and 302011223108.

It is not an unprimeable number, because it can be changed into a prime (300011223131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15061906 + ... + 15081943.

It is an arithmetic number, because the mean of its divisors is an integer number (38795134950).

Almost surely, 2302011223131 is an apocalyptic number.

302011223131 is a deficient number, since it is larger than the sum of its proper divisors (8349856469).

302011223131 is a wasteful number, since it uses less digits than its factorization.

302011223131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30144125.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 302011223131 its reverse (131322110203), we get a palindrome (433333333334).

The spelling of 302011223131 in words is "three hundred two billion, eleven million, two hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 43 233 10019 30143849 1296185507 7023516817 302011223131