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30133051 = 132317927
BaseRepresentation
bin111001011110…
…0101100111011
32002200220202221
41302330230323
530203224201
62553504511
7514061314
oct162745473
962626687
1030133051
1116011453
12a112137
136320710
14400560b
1529a34a1
hex1cbcb3b

30133051 has 4 divisors (see below), whose sum is σ = 32450992. Its totient is φ = 27815112.

The previous prime is 30133021. The next prime is 30133057. The reversal of 30133051 is 15033103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15033103 = 59925097.

It is not a de Polignac number, because 30133051 - 213 = 30124859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30133057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158951 + ... + 1158976.

It is an arithmetic number, because the mean of its divisors is an integer number (8112748).

Almost surely, 230133051 is an apocalyptic number.

30133051 is a deficient number, since it is larger than the sum of its proper divisors (2317941).

30133051 is a wasteful number, since it uses less digits than its factorization.

30133051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317940.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 30133051 is about 5489.3579770316. The cubic root of 30133051 is about 311.1819291686.

Adding to 30133051 its reverse (15033103), we get a palindrome (45166154).

The spelling of 30133051 in words is "thirty million, one hundred thirty-three thousand, fifty-one".

Divisors: 1 13 2317927 30133051