Search a number
-
+
30492308 = 22721114143
BaseRepresentation
bin111010001010…
…0011010010100
32010101011120202
41310110122110
530301223213
63005320032
7520115600
oct164243224
963334522
1030492308
1116237360
12a266018
1364180b2
14409a500
152a24b58
hex1d14694

30492308 has 36 divisors (see below), whose sum is σ = 67721472. Its totient is φ = 11879280.

The previous prime is 30492307. The next prime is 30492323. The reversal of 30492308 is 80329403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30492307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4916 + ... + 9227.

It is an arithmetic number, because the mean of its divisors is an integer number (1881152).

Almost surely, 230492308 is an apocalyptic number.

It is an amenable number.

30492308 is an abundant number, since it is smaller than the sum of its proper divisors (37229164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30492308 is a wasteful number, since it uses less digits than its factorization.

30492308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14172 (or 14163 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 30492308 is about 5521.9840637220. The cubic root of 30492308 is about 312.4137208211.

The spelling of 30492308 in words is "thirty million, four hundred ninety-two thousand, three hundred eight".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 14143 28286 56572 99001 155573 198002 311146 396004 622292 693007 1089011 1386014 2178022 2772028 4356044 7623077 15246154 30492308