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30032313 = 329615659
BaseRepresentation
bin111001010010…
…0000110111001
32002111210120220
41302210012321
530142013223
62551410253
7513161523
oct162440671
962453526
1030032313
1115a527a3
12a083989
1362b68cc
143dbaa13
1529836e3
hex1ca41b9

30032313 has 16 divisors (see below), whose sum is σ = 42110400. Its totient is φ = 19010880.

The previous prime is 30032309. The next prime is 30032323. The reversal of 30032313 is 31323003.

It is not a de Polignac number, because 30032313 - 22 = 30032309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30032292 and 30032301.

It is not an unprimeable number, because it can be changed into a prime (30032323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2478 + ... + 8136.

It is an arithmetic number, because the mean of its divisors is an integer number (2631900).

Almost surely, 230032313 is an apocalyptic number.

It is an amenable number.

30032313 is a deficient number, since it is larger than the sum of its proper divisors (12078087).

30032313 is a wasteful number, since it uses less digits than its factorization.

30032313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5752.

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 30032313 is about 5480.1745410160. The cubic root of 30032313 is about 310.8347705700.

Adding to 30032313 its reverse (31323003), we get a palindrome (61355316).

The spelling of 30032313 in words is "thirty million, thirty-two thousand, three hundred thirteen".

Divisors: 1 3 29 61 87 183 1769 5307 5659 16977 164111 345199 492333 1035597 10010771 30032313