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30212231322 = 23713192912303
BaseRepresentation
bin11100001000110010…
…100001000010011010
32212222112122101000110
4130020302201002122
5443333312400242
621513532545150
72116454505030
oct341062410232
985875571013
1030212231322
11118a4020619
125a320221b6
132b06342770
1416686d2550
15bbc59c39c
hex708ca109a

30212231322 has 64 divisors (see below), whose sum is σ = 78282731520. Its totient is φ = 7548686784.

The previous prime is 30212231311. The next prime is 30212231369. The reversal of 30212231322 is 22313221203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1445778 + ... + 1466525.

It is an arithmetic number, because the mean of its divisors is an integer number (1223167680).

Almost surely, 230212231322 is an apocalyptic number.

30212231322 is an abundant number, since it is smaller than the sum of its proper divisors (48070500198).

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

30212231322 is a wasteful number, since it uses less digits than its factorization.

30212231322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912347.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30212231322 its reverse (22313221203), we get a palindrome (52525452525).

The spelling of 30212231322 in words is "thirty billion, two hundred twelve million, two hundred thirty-one thousand, three hundred twenty-two".

Divisors: 1 2 3 6 7 13 14 19 21 26 38 39 42 57 78 91 114 133 182 247 266 273 399 494 546 741 798 1482 1729 3458 5187 10374 2912303 5824606 8736909 17473818 20386121 37859939 40772242 55333757 61158363 75719878 110667514 113579817 122316726 166001271 227159634 265019573 332002542 387336299 530039146 719338841 774672598 795058719 1162008897 1438677682 1590117438 2158016523 2324017794 4316033046 5035371887 10070743774 15106115661 30212231322