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30213123234 = 2371017122377
BaseRepresentation
bin11100001000110101…
…111010110010100010
32212222121022200111020
4130020311322302202
5443334024420414
621514004030310
72116465211250
oct341065726242
985877280436
1030213123234
11118a457a738
125a32392396
132b06595718
1416688855d0
15bbc6c67a9
hex708d7aca2

30213123234 has 32 divisors (see below), whose sum is σ = 69742325376. Its totient is φ = 8546851200.

The previous prime is 30213123233. The next prime is 30213123301. The reversal of 30213123234 is 43232131203.

It is not an unprimeable number, because it can be changed into a prime (30213123233) 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 15 ways as a sum of consecutive naturals, for example, 3556947 + ... + 3565430.

It is an arithmetic number, because the mean of its divisors is an integer number (2179447668).

Almost surely, 230213123234 is an apocalyptic number.

30213123234 is an abundant number, since it is smaller than the sum of its proper divisors (39529202142).

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

30213123234 is a wasteful number, since it uses less digits than its factorization.

30213123234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122490.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 30213123234 its reverse (43232131203), we get a palindrome (73445254437).

The spelling of 30213123234 in words is "thirty billion, two hundred thirteen million, one hundred twenty-three thousand, two hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 101 202 303 606 707 1414 2121 4242 7122377 14244754 21367131 42734262 49856639 99713278 149569917 299139834 719360077 1438720154 2158080231 4316160462 5035520539 10071041078 15106561617 30213123234