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30132121 = 431494703
BaseRepresentation
bin111001011110…
…0011110011001
32002200212111111
41302330132121
530203211441
62553500321
7514055515
oct162743631
962625444
1030132121
1116010788
12a1116a1
136320176
144005145
1529a3081
hex1cbc799

30132121 has 8 divisors (see below), whose sum is σ = 31046400. Its totient is φ = 29227632.

The previous prime is 30132103. The next prime is 30132149. The reversal of 30132121 is 12123103.

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 30132121 - 27 = 30131993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30132161) 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, 4056 + ... + 8758.

It is an arithmetic number, because the mean of its divisors is an integer number (3880800).

Almost surely, 230132121 is an apocalyptic number.

It is an amenable number.

30132121 is a deficient number, since it is larger than the sum of its proper divisors (914279).

30132121 is a wasteful number, since it uses less digits than its factorization.

30132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4895.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 30132121 is about 5489.2732670181. The cubic root of 30132121 is about 311.1787277871.

Adding to 30132121 its reverse (12123103), we get a palindrome (42255224).

The spelling of 30132121 in words is "thirty million, one hundred thirty-two thousand, one hundred twenty-one".

Divisors: 1 43 149 4703 6407 202229 700747 30132121