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30302513210231 = 92833264301757
BaseRepresentation
bin1101110001111010110101…
…00010010010001101110111
310222021220002020200002112122
412320331122202102031313
512432434021340211411
6144240440555110155
76245166345300233
oct670753242221567
9128256066602478
1030302513210231
1197232507a43a9
1234949b644235b
1313ba68cb440b2
1476a9141bb5c3
15378387e229db
hex1b8f5a892377

30302513210231 has 4 divisors (see below), whose sum is σ = 30305777521272. Its totient is φ = 30299248899192.

The previous prime is 30302513210171. The next prime is 30302513210267. The reversal of 30302513210231 is 13201231520303.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30302513210231 - 214 = 30302513193847 is a prime.

It is a super-2 number, since 2×303025132102312 (a number of 28 digits) contains 22 as substring.

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 30302513210231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30302513210731) 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, 1632141596 + ... + 1632160161.

It is an arithmetic number, because the mean of its divisors is an integer number (7576444380318).

Almost surely, 230302513210231 is an apocalyptic number.

30302513210231 is a deficient number, since it is larger than the sum of its proper divisors (3264311041).

30302513210231 is an equidigital number, since it uses as much as digits as its factorization.

30302513210231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264311040.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 30302513210231 its reverse (13201231520303), we get a palindrome (43503744730534).

The spelling of 30302513210231 in words is "thirty trillion, three hundred two billion, five hundred thirteen million, two hundred ten thousand, two hundred thirty-one".

Divisors: 1 9283 3264301757 30302513210231