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30202123430 = 2525711751799
BaseRepresentation
bin11100001000001011…
…111101010010100110
32212221211121211121002
4130020023331102212
5443323220422210
621512532153302
72116302545663
oct341013752246
985854554532
1030202123430
1111899347396
125a2a768832
132b04213a6b
141667220a6a
15bbb7524a5
hex7082fd4a6

30202123430 has 16 divisors (see below), whose sum is σ = 54575359200. Its totient is φ = 12033841152.

The previous prime is 30202123429. The next prime is 30202123433. The reversal of 30202123430 is 3432120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202123433) 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 7 ways as a sum of consecutive naturals, for example, 5873330 + ... + 5878469.

It is an arithmetic number, because the mean of its divisors is an integer number (3410959950).

Almost surely, 230202123430 is an apocalyptic number.

30202123430 is a deficient number, since it is larger than the sum of its proper divisors (24373235770).

30202123430 is a wasteful number, since it uses less digits than its factorization.

30202123430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11752063.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30202123430 its reverse (3432120203), we get a palindrome (33634243633).

The spelling of 30202123430 in words is "thirty billion, two hundred two million, one hundred twenty-three thousand, four hundred thirty".

Divisors: 1 2 5 10 257 514 1285 2570 11751799 23503598 58758995 117517990 3020212343 6040424686 15101061715 30202123430