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30996577 = 277317353
BaseRepresentation
bin111011000111…
…1100001100001
32011022210022101
41312033201201
530413342302
63024210401
7524316013
oct166174141
964283271
1030996577
1116551207
12a469a01
136563791
14418c1b3
152ac4287
hex1d8f861

30996577 has 8 divisors (see below), whose sum is σ = 31295016. Its totient is φ = 30700032.

The previous prime is 30996551. The next prime is 30996587. The reversal of 30996577 is 77569903.

It can be written as a sum of positive squares in 4 ways, for example, as 349281 + 30647296 = 591^2 + 5536^2 .

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 30996577 - 215 = 30963809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30996517) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 87633 + ... + 87985.

It is an arithmetic number, because the mean of its divisors is an integer number (3911877).

Almost surely, 230996577 is an apocalyptic number.

It is an amenable number.

30996577 is a deficient number, since it is larger than the sum of its proper divisors (298439).

30996577 is a wasteful number, since it uses less digits than its factorization.

30996577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947.

The product of its (nonzero) digits is 357210, while the sum is 46.

The square root of 30996577 is about 5567.4569598696. The cubic root of 30996577 is about 314.1265025060.

The spelling of 30996577 in words is "thirty million, nine hundred ninety-six thousand, five hundred seventy-seven".

Divisors: 1 277 317 353 87809 97781 111901 30996577