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30253053 = 310084351
BaseRepresentation
bin111001101100…
…1111111111101
32002221000101110
41303121333331
530221044203
63000232233
7515101215
oct163317775
962830343
1030253053
1116093626
12a16b679
13636321c
144037245
1529c8d03
hex1cd9ffd

30253053 has 4 divisors (see below), whose sum is σ = 40337408. Its totient is φ = 20168700.

The previous prime is 30253033. The next prime is 30253103. The reversal of 30253053 is 35035203.

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 30253053 - 25 = 30253021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30253033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5042173 + ... + 5042178.

It is an arithmetic number, because the mean of its divisors is an integer number (10084352).

Almost surely, 230253053 is an apocalyptic number.

It is an amenable number.

30253053 is a deficient number, since it is larger than the sum of its proper divisors (10084355).

30253053 is a wasteful number, since it uses less digits than its factorization.

30253053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10084354.

The product of its (nonzero) digits is 1350, while the sum is 21.

The square root of 30253053 is about 5500.2775384520. The cubic root of 30253053 is about 311.5944661348.

Adding to 30253053 its reverse (35035203), we get a palindrome (65288256).

The spelling of 30253053 in words is "thirty million, two hundred fifty-three thousand, fifty-three".

Divisors: 1 3 10084351 30253053