Search a number
-
+
30748982 = 2111397681
BaseRepresentation
bin111010101001…
…1000100110110
32010212012200012
41311103010312
530332431412
63015020222
7522235115
oct165230466
963765605
1030748982
11163a2190
12a36a672
1364a7b84
144125c7c
152a75c22
hex1d53136

30748982 has 8 divisors (see below), whose sum is σ = 50316552. Its totient is φ = 13976800.

The previous prime is 30748979. The next prime is 30748997. The reversal of 30748982 is 28984703.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 698819 + ... + 698862.

It is an arithmetic number, because the mean of its divisors is an integer number (6289569).

Almost surely, 230748982 is an apocalyptic number.

30748982 is a deficient number, since it is larger than the sum of its proper divisors (19567570).

30748982 is a wasteful number, since it uses less digits than its factorization.

30748982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397694.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 30748982 is about 5545.1764624762. The cubic root of 30748982 is about 313.2878705228.

The spelling of 30748982 in words is "thirty million, seven hundred forty-eight thousand, nine hundred eighty-two".

Divisors: 1 2 11 22 1397681 2795362 15374491 30748982