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30314331 = 342711381
BaseRepresentation
bin111001110100…
…0111101011011
32010001010110000
41303220331123
530230024311
63001424043
7515444655
oct163507533
963033400
1030314331
1116125673
12a19b023
136385098
1440516d5
1529dc056
hex1ce8f5b

30314331 has 20 divisors (see below), whose sum is σ = 45484384. Its totient is φ = 20120400.

The previous prime is 30314327. The next prime is 30314353. The reversal of 30314331 is 13341303.

It is not a de Polignac number, because 30314331 - 22 = 30314327 is a prime.

It is a super-2 number, since 2×303143312 = 1837917327955122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30313331) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21261 + ... + 22641.

Almost surely, 230314331 is an apocalyptic number.

30314331 is a deficient number, since it is larger than the sum of its proper divisors (15170053).

30314331 is a wasteful number, since it uses less digits than its factorization.

30314331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664 (or 1655 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 30314331 is about 5505.8451667296. The cubic root of 30314331 is about 311.8047039636.

Adding to 30314331 its reverse (13341303), we get a palindrome (43655634).

The spelling of 30314331 in words is "thirty million, three hundred fourteen thousand, three hundred thirty-one".

Divisors: 1 3 9 27 81 271 813 1381 2439 4143 7317 12429 21951 37287 111861 374251 1122753 3368259 10104777 30314331