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30233031142 = 2101241621031
BaseRepresentation
bin11100001010000001…
…110111000111100110
32220000222210010000011
4130022001313013212
5443404123444032
621515554440434
72120126344636
oct341201670746
986028703004
1030233031142
1111904837856
125a38b9311a
132b0a745c52
14166b3886c6
15bbe30a247
hex70a0771e6

30233031142 has 16 divisors (see below), whose sum is σ = 45988661664. Its totient is φ = 14904720000.

The previous prime is 30233031091. The next prime is 30233031161. The reversal of 30233031142 is 24113033203.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 261834 + ... + 359197.

It is an arithmetic number, because the mean of its divisors is an integer number (2874291354).

Almost surely, 230233031142 is an apocalyptic number.

30233031142 is a deficient number, since it is larger than the sum of its proper divisors (15755630522).

30233031142 is a wasteful number, since it uses less digits than its factorization.

30233031142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621375.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30233031142 its reverse (24113033203), we get a palindrome (54346064345).

The spelling of 30233031142 in words is "thirty billion, two hundred thirty-three million, thirty-one thousand, one hundred forty-two".

Divisors: 1 2 101 202 241 482 24341 48682 621031 1242062 62724131 125448262 149668471 299336942 15116515571 30233031142