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30403040061 = 323440623769
BaseRepresentation
bin11100010100001010…
…011001001100111101
32220110211200110101210
4130110022121030331
5444231134240221
621544510355033
72124262401522
oct342412311475
986424613353
1030403040061
11119917a5a99
125a85abba79
132b36a2c344
141685ba1149
15bce1dd276
hex71429933d

30403040061 has 8 divisors (see below), whose sum is σ = 42299881920. Its totient is φ = 19387445792.

The previous prime is 30403040033. The next prime is 30403040069. The reversal of 30403040061 is 16004030403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30403040061 - 25 = 30403040029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30403040069) 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, 220311816 + ... + 220311953.

It is an arithmetic number, because the mean of its divisors is an integer number (5287485240).

Almost surely, 230403040061 is an apocalyptic number.

It is an amenable number.

30403040061 is a deficient number, since it is larger than the sum of its proper divisors (11896841859).

30403040061 is a wasteful number, since it uses less digits than its factorization.

30403040061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440623795.

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

Adding to 30403040061 its reverse (16004030403), we get a palindrome (46407070464).

The spelling of 30403040061 in words is "thirty billion, four hundred three million, forty thousand, sixty-one".

Divisors: 1 3 23 69 440623769 1321871307 10134346687 30403040061