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30213210331 = 292713844409
BaseRepresentation
bin11100001000110110…
…010000000011011011
32212222121111002222001
4130020312100003123
5443334040212311
621514005541431
72116466023213
oct341066200333
985877432861
1030213210331
11118a462a117
125a32414877
132b065c6265
1416688a9243
15bbc6e24c1
hex708d900db

30213210331 has 8 divisors (see below), whose sum is σ = 31370385600. Its totient is φ = 29063724480.

The previous prime is 30213210319. The next prime is 30213210337. The reversal of 30213210331 is 13301231203.

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-30213210331 is a prime.

It is a super-4 number, since 4×302132103314 (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30213210299 and 30213210308.

It is not an unprimeable number, because it can be changed into a prime (30213210337) 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, 1914346 + ... + 1930063.

It is an arithmetic number, because the mean of its divisors is an integer number (3921298200).

Almost surely, 230213210331 is an apocalyptic number.

30213210331 is a deficient number, since it is larger than the sum of its proper divisors (1157175269).

30213210331 is a wasteful number, since it uses less digits than its factorization.

30213210331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3844709.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30213210331 its reverse (13301231203), we get a palindrome (43514441534).

The spelling of 30213210331 in words is "thirty billion, two hundred thirteen million, two hundred ten thousand, three hundred thirty-one".

Divisors: 1 29 271 7859 3844409 111487861 1041834839 30213210331