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30152253 = 310050751
BaseRepresentation
bin111001100000…
…1011000111101
32002201220010010
41303001120331
530204333003
62554133433
7514201305
oct163013075
962656103
1030152253
111602491a
12a121279
136329391
14400c605
1529a9003
hex1cc163d

30152253 has 4 divisors (see below), whose sum is σ = 40203008. Its totient is φ = 20101500.

The previous prime is 30152249. The next prime is 30152267. The reversal of 30152253 is 35225103.

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 30152253 - 22 = 30152249 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 (30152653) 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, 5025373 + ... + 5025378.

It is an arithmetic number, because the mean of its divisors is an integer number (10050752).

Almost surely, 230152253 is an apocalyptic number.

It is an amenable number.

30152253 is a deficient number, since it is larger than the sum of its proper divisors (10050755).

30152253 is a wasteful number, since it uses less digits than its factorization.

30152253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050754.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 30152253 is about 5491.1067190504. The cubic root of 30152253 is about 311.2480143742.

Adding to 30152253 its reverse (35225103), we get a palindrome (65377356).

The spelling of 30152253 in words is "thirty million, one hundred fifty-two thousand, two hundred fifty-three".

Divisors: 1 3 10050751 30152253