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30550495369 = 27726312
BaseRepresentation
bin11100011100111100…
…111001000010001001
32220212010010222001111
4130130330321002021
51000031411322434
622011255050321
72131032632422
oct343474710211
986763128044
1030550495369
1111a57a5a389
125b073709a1
132b5b449bc4
14169b5c6649
15bdc118964
hex71cf39089

30550495369 has 9 divisors (see below), whose sum is σ = 30709852551. Its totient is φ = 30391963560.

The previous prime is 30550495343. The next prime is 30550495379. The reversal of 30550495369 is 96359405503.

The square root of 30550495369 is 174787.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5265679225 + 25284816144 = 72565^2 + 159012^2 .

It is a de Polignac number, because none of the positive numbers 2k-30550495369 is a prime.

It is a super-2 number, since 2×305504953692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30550495309) 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 8 ways as a sum of consecutive naturals, for example, 48415684 + ... + 48416314.

It is an arithmetic number, because the mean of its divisors is an integer number (3412205839).

Almost surely, 230550495369 is an apocalyptic number.

30550495369 is the 174787-th square number.

30550495369 is the 87394-th centered octagonal number.

It is an amenable number.

30550495369 is a deficient number, since it is larger than the sum of its proper divisors (159357182).

30550495369 is an frugal number, since it uses more digits than its factorization.

30550495369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 2187000, while the sum is 49.

Multiplying 30550495369 by its sum of digits (49), we get a square (1496974273081 = 12235092).

The spelling of 30550495369 in words is "thirty billion, five hundred fifty million, four hundred ninety-five thousand, three hundred sixty-nine".

Divisors: 1 277 631 76729 174787 398161 48415999 110290597 30550495369