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30134251 = 717253229
BaseRepresentation
bin111001011110…
…0111111101011
32002200222102101
41302330333223
530203244001
62553514231
7514064650
oct162747753
962628371
1030134251
1116012344
12a112977
136321124
144005c27
1529a3a01
hex1cbcfeb

30134251 has 8 divisors (see below), whose sum is σ = 36465120. Its totient is φ = 24309888.

The previous prime is 30134239. The next prime is 30134267. The reversal of 30134251 is 15243103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30134251 - 29 = 30133739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30134231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126496 + ... + 126733.

It is an arithmetic number, because the mean of its divisors is an integer number (4558140).

Almost surely, 230134251 is an apocalyptic number.

30134251 is a deficient number, since it is larger than the sum of its proper divisors (6330869).

30134251 is a wasteful number, since it uses less digits than its factorization.

30134251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253253.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 30134251 is about 5489.4672783431. The cubic root of 30134251 is about 311.1860598860.

Adding to 30134251 its reverse (15243103), we get a palindrome (45377354).

The spelling of 30134251 in words is "thirty million, one hundred thirty-four thousand, two hundred fifty-one".

Divisors: 1 7 17 119 253229 1772603 4304893 30134251