Search a number
-
+
30397268 = 22111913617
BaseRepresentation
bin111001111110…
…1001101010100
32010012100012202
41303331031110
530240203033
63003304032
7516241526
oct163751524
963170182
1030397268
1116181a10
12a21b018
1363b3a65
144073a16
152a068e8
hex1cfd354

30397268 has 24 divisors (see below), whose sum is σ = 58351104. Its totient is φ = 13740800.

The previous prime is 30397261. The next prime is 30397271. The reversal of 30397268 is 86279303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30397261) 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, 6596 + ... + 10212.

It is an arithmetic number, because the mean of its divisors is an integer number (2431296).

Almost surely, 230397268 is an apocalyptic number.

It is an amenable number.

30397268 is a deficient number, since it is larger than the sum of its proper divisors (27953836).

30397268 is a wasteful number, since it uses less digits than its factorization.

30397268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3823 (or 3821 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 30397268 is about 5513.3717451302. The cubic root of 30397268 is about 312.0888006055.

The spelling of 30397268 in words is "thirty million, three hundred ninety-seven thousand, two hundred sixty-eight".

Divisors: 1 2 4 11 22 44 191 382 764 2101 3617 4202 7234 8404 14468 39787 79574 159148 690847 1381694 2763388 7599317 15198634 30397268