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30026161 = 112729651
BaseRepresentation
bin111001010001…
…0100110110001
32002111111011001
41302202212301
530141314121
62551322001
7513134554
oct162424661
962444131
1030026161
1115a49110
12a080301
1362b3b79
143db869b
152981991
hex1ca29b1

30026161 has 4 divisors (see below), whose sum is σ = 32755824. Its totient is φ = 27296500.

The previous prime is 30026147. The next prime is 30026167. The reversal of 30026161 is 16162003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30026161 - 213 = 30017969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30026167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364815 + ... + 1364836.

It is an arithmetic number, because the mean of its divisors is an integer number (8188956).

Almost surely, 230026161 is an apocalyptic number.

It is an amenable number.

30026161 is a deficient number, since it is larger than the sum of its proper divisors (2729663).

30026161 is a wasteful number, since it uses less digits than its factorization.

30026161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729662.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 30026161 is about 5479.6132162772. The cubic root of 30026161 is about 310.8135446980.

Adding to 30026161 its reverse (16162003), we get a palindrome (46188164).

The spelling of 30026161 in words is "thirty million, twenty-six thousand, one hundred sixty-one".

Divisors: 1 11 2729651 30026161