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30454133 = 151201683
BaseRepresentation
bin111010000101…
…1000101110101
32010022020012212
41310023011311
530244013013
63004423205
7516566363
oct164130565
963266185
1030454133
1116210706
12a247b05
1364038c8
14408a633
152a186a8
hex1d0b175

30454133 has 4 divisors (see below), whose sum is σ = 30655968. Its totient is φ = 30252300.

The previous prime is 30454117. The next prime is 30454153. The reversal of 30454133 is 33145403.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33145403 = 106331181.

It is a cyclic number.

It is not a de Polignac number, because 30454133 - 24 = 30454117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30454099 and 30454108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30454153) 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, 100691 + ... + 100992.

It is an arithmetic number, because the mean of its divisors is an integer number (7663992).

Almost surely, 230454133 is an apocalyptic number.

It is an amenable number.

30454133 is a deficient number, since it is larger than the sum of its proper divisors (201835).

30454133 is a wasteful number, since it uses less digits than its factorization.

30454133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201834.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 30454133 is about 5518.5263431463. The cubic root of 30454133 is about 312.2832903930.

Adding to 30454133 its reverse (33145403), we get a palindrome (63599536).

The spelling of 30454133 in words is "thirty million, four hundred fifty-four thousand, one hundred thirty-three".

Divisors: 1 151 201683 30454133