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302130022231 = 1272378976553
BaseRepresentation
bin1000110010110000101…
…10100100011101010111
31001212211221221100221101
410121120112210131113
514422230241202411
6350444022530531
730554030546602
oct4313026443527
91055757840841
10302130022231
11107150580554
124a67a896a47
132264c1cb8ab
14108a1da5339
157cd46a68c1
hex46585a4757

302130022231 has 4 divisors (see below), whose sum is σ = 304508998912. Its totient is φ = 299751045552.

The previous prime is 302130022217. The next prime is 302130022307. The reversal of 302130022231 is 132220031203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132220031203 = 1310170771631.

It is a cyclic number.

It is not a de Polignac number, because 302130022231 - 211 = 302130020183 is a prime.

It is a super-2 number, since 2×3021300222312 (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 = 302130022199 and 302130022208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302130022211) 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, 1189488150 + ... + 1189488403.

It is an arithmetic number, because the mean of its divisors is an integer number (76127249728).

Almost surely, 2302130022231 is an apocalyptic number.

302130022231 is a deficient number, since it is larger than the sum of its proper divisors (2378976681).

302130022231 is a wasteful number, since it uses less digits than its factorization.

302130022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378976680.

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

Adding to 302130022231 its reverse (132220031203), we get a palindrome (434350053434).

The spelling of 302130022231 in words is "three hundred two billion, one hundred thirty million, twenty-two thousand, two hundred thirty-one".

Divisors: 1 127 2378976553 302130022231