Search a number
-
+
30022768 = 242118893
BaseRepresentation
bin111001010000…
…1110001110000
32002111022111101
41302201301300
530141212033
62551254144
7513121636
oct162416160
962438441
1030022768
1115a46606
12a07a354
1362b2469
143db7356
15298097d
hex1ca1c70

30022768 has 20 divisors (see below), whose sum is σ = 58451368. Its totient is φ = 14938560.

The previous prime is 30022763. The next prime is 30022781. The reversal of 30022768 is 86722003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30022763) 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 3 ways as a sum of consecutive naturals, for example, 1071 + ... + 7822.

Almost surely, 230022768 is an apocalyptic number.

It is an amenable number.

30022768 is a deficient number, since it is larger than the sum of its proper divisors (28428600).

30022768 is a wasteful number, since it uses less digits than its factorization.

30022768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9112 (or 9106 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 30022768 is about 5479.3036053864. The cubic root of 30022768 is about 310.8018367956.

The spelling of 30022768 in words is "thirty million, twenty-two thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 211 422 844 1688 3376 8893 17786 35572 71144 142288 1876423 3752846 7505692 15011384 30022768