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30388530548 = 2236011210967
BaseRepresentation
bin11100010011010011…
…000010110101110100
32220102211101022002102
4130103103002311310
5444213430434143
621543231401232
72124025150655
oct342323026564
986384338072
1030388530548
1111984595862
125a81083218
132b33a1c02c
141683ca552c
15bcccc40b8
hex7134c2d74

30388530548 has 12 divisors (see below), whose sum is σ = 53181657312. Its totient is φ = 15193771320.

The previous prime is 30388530547. The next prime is 30388530563. The reversal of 30388530548 is 84503588303.

It is a super-3 number, since 3×303885305483 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30388530547) 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 3 ways as a sum of consecutive naturals, for example, 38561 + ... + 249527.

It is an arithmetic number, because the mean of its divisors is an integer number (4431804776).

Almost surely, 230388530548 is an apocalyptic number.

It is an amenable number.

30388530548 is a deficient number, since it is larger than the sum of its proper divisors (22793126764).

30388530548 is a wasteful number, since it uses less digits than its factorization.

30388530548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246982 (or 246980 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 47.

It can be divided in two parts, 303885 and 30548, that added together give a palindrome (334433).

The spelling of 30388530548 in words is "thirty billion, three hundred eighty-eight million, five hundred thirty thousand, five hundred forty-eight".

Divisors: 1 2 4 36011 72022 144044 210967 421934 843868 7597132637 15194265274 30388530548