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30401153155 = 56080230631
BaseRepresentation
bin11100010100000011…
…001100100010000011
32220110201010121001101
4130110003030202003
5444230143400110
621544402115231
72124240352402
oct342403144203
986421117041
1030401153155
111199072736a
125a8534bb17
132b3651b529
14168582d639
15bcde6913a
hex7140cc883

30401153155 has 4 divisors (see below), whose sum is σ = 36481383792. Its totient is φ = 24320922520.

The previous prime is 30401153113. The next prime is 30401153161. The reversal of 30401153155 is 55135110403.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2k-30401153155 is a prime.

It is a super-2 number, since 2×304011531552 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 3040115311 + ... + 3040115320.

It is an arithmetic number, because the mean of its divisors is an integer number (9120345948).

Almost surely, 230401153155 is an apocalyptic number.

30401153155 is a deficient number, since it is larger than the sum of its proper divisors (6080230637).

30401153155 is an equidigital number, since it uses as much as digits as its factorization.

30401153155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6080230636.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 30401153155 its reverse (55135110403), we get a palindrome (85536263558).

The spelling of 30401153155 in words is "thirty billion, four hundred one million, one hundred fifty-three thousand, one hundred fifty-five".

Divisors: 1 5 6080230631 30401153155