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30260481 = 310086827
BaseRepresentation
bin111001101101…
…1110100000001
32002221101120120
41303123310001
530221313411
63000330453
7515131656
oct163336401
962841516
1030260481
1116099169
12a173a29
136366714
144039c2d
1529cb106
hex1cdbd01

30260481 has 4 divisors (see below), whose sum is σ = 40347312. Its totient is φ = 20173652.

The previous prime is 30260467. The next prime is 30260491. The reversal of 30260481 is 18406203.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 30260481 - 27 = 30260353 is a prime.

It is a super-2 number, since 2×302604812 = 1831393420702722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30260401) 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 3 ways as a sum of consecutive naturals, for example, 5043411 + ... + 5043416.

It is an arithmetic number, because the mean of its divisors is an integer number (10086828).

Almost surely, 230260481 is an apocalyptic number.

It is an amenable number.

30260481 is a deficient number, since it is larger than the sum of its proper divisors (10086831).

30260481 is a wasteful number, since it uses less digits than its factorization.

30260481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10086830.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 30260481 is about 5500.9527356632. The cubic root of 30260481 is about 311.6199658675.

Adding to 30260481 its reverse (18406203), we get a palindrome (48666684).

The spelling of 30260481 in words is "thirty million, two hundred sixty thousand, four hundred eighty-one".

Divisors: 1 3 10086827 30260481