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30112321323 = 3717194439381
BaseRepresentation
bin11100000010110101…
…011000111100101011
32212201120122102021010
4130002311120330223
5443132223240243
621500003315003
72114132336160
oct340265307453
985646572233
1030112321323
1111852690777
125a0467ba63
132abb730c16
141659326067
15bb3914433
hex702d58f2b

30112321323 has 32 divisors (see below), whose sum is σ = 51141680640. Its totient is φ = 15342497280.

The previous prime is 30112321307. The next prime is 30112321333. The reversal of 30112321323 is 32312321103.

It is not a de Polignac number, because 30112321323 - 24 = 30112321307 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30112321323.

It is not an unprimeable number, because it can be changed into a prime (30112321333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2212908 + ... + 2226473.

It is an arithmetic number, because the mean of its divisors is an integer number (1598177520).

Almost surely, 230112321323 is an apocalyptic number.

30112321323 is a deficient number, since it is larger than the sum of its proper divisors (21029359317).

30112321323 is a wasteful number, since it uses less digits than its factorization.

30112321323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439427.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30112321323 its reverse (32312321103), we get a palindrome (62424642426).

The spelling of 30112321323 in words is "thirty billion, one hundred twelve million, three hundred twenty-one thousand, three hundred twenty-three".

Divisors: 1 3 7 17 19 21 51 57 119 133 323 357 399 969 2261 6783 4439381 13318143 31075667 75469477 84348239 93227001 226408431 253044717 528286339 590437673 1433920063 1584859017 1771313019 4301760189 10037440441 30112321323