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30739192 = 23111632143
BaseRepresentation
bin111010101000…
…0101011111000
32010211201020121
41311100223320
530332123232
63014503024
7522164431
oct165205370
963751217
1030739192
11163958a0
12a364a74
1364a3593
144122488
152a72d97
hex1d50af8

30739192 has 32 divisors (see below), whose sum is σ = 63290880. Its totient is φ = 13880160.

The previous prime is 30739183. The next prime is 30739211. The reversal of 30739192 is 29193703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13273 + ... + 15415.

It is an arithmetic number, because the mean of its divisors is an integer number (1977840).

Almost surely, 230739192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30739192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31645440).

30739192 is an abundant number, since it is smaller than the sum of its proper divisors (32551688).

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

30739192 is a wasteful number, since it uses less digits than its factorization.

30739192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323 (or 2319 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 30739192 is about 5544.2936430171. The cubic root of 30739192 is about 313.2546183237.

The spelling of 30739192 in words is "thirty million, seven hundred thirty-nine thousand, one hundred ninety-two".

Divisors: 1 2 4 8 11 22 44 88 163 326 652 1304 1793 2143 3586 4286 7172 8572 14344 17144 23573 47146 94292 188584 349309 698618 1397236 2794472 3842399 7684798 15369596 30739192