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30100897 = 173135657
BaseRepresentation
bin111001011010…
…0110110100001
32002122021200001
41302310312201
530201212042
62553100001
7513565501
oct162646641
962567601
1030100897
1115a9a282
12a0b7601
13630bba8
143dd7a01
152998bb7
hex1cb4da1

30100897 has 8 divisors (see below), whose sum is σ = 31979016. Its totient is φ = 28234752.

The previous prime is 30100891. The next prime is 30100909. The reversal of 30100897 is 79800103.

It can be written as a sum of positive squares in 4 ways, for example, as 59536 + 30041361 = 244^2 + 5481^2 .

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 30100897 - 219 = 29576609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30100891) 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, 2493 + ... + 8149.

It is an arithmetic number, because the mean of its divisors is an integer number (3997377).

Almost surely, 230100897 is an apocalyptic number.

It is an amenable number.

30100897 is a deficient number, since it is larger than the sum of its proper divisors (1878119).

30100897 is a wasteful number, since it uses less digits than its factorization.

30100897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5987.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 30100897 is about 5486.4284375174. The cubic root of 30100897 is about 311.0712057329.

The spelling of 30100897 in words is "thirty million, one hundred thousand, eight hundred ninety-seven".

Divisors: 1 17 313 5321 5657 96169 1770641 30100897