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30210212322 = 2321678345129
BaseRepresentation
bin11100001000101010…
…110100000111100010
32212222101211210110200
4130020222310013202
5443332303243242
621513421410030
72116431365523
oct341052640742
985871753420
1030210212322
11118a2971724
125a31409916
132b05ab67a4
14166832884a
15bbc2ee04c
hex708ab41e2

30210212322 has 12 divisors (see below), whose sum is σ = 65455460070. Its totient is φ = 10070070768.

The previous prime is 30210212317. The next prime is 30210212353. The reversal of 30210212322 is 22321201203.

It can be written as a sum of positive squares in only one way, i.e., 24771297321 + 5438915001 = 157389^2 + 73749^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1678345129 = 30210212322 / (3 + 0 + 2 + 1 + 0 + 2 + 1 + 2 + 3 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 30210212295 and 30210212304.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 839172547 + ... + 839172582.

Almost surely, 230210212322 is an apocalyptic number.

30210212322 is an abundant number, since it is smaller than the sum of its proper divisors (35245247748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30210212322 is a wasteful number, since it uses less digits than its factorization.

30210212322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678345137 (or 1678345134 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30210212322 its reverse (22321201203), we get a palindrome (52531413525).

The spelling of 30210212322 in words is "thirty billion, two hundred ten million, two hundred twelve thousand, three hundred twenty-two".

Divisors: 1 2 3 6 9 18 1678345129 3356690258 5035035387 10070070774 15105106161 30210212322