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30022889 = 1323100411
BaseRepresentation
bin111001010000…
…1110011101001
32002111022122212
41302201303221
530141213024
62551254505
7513122201
oct162416351
962438585
1030022889
1115a46706
12a07a435
1362b2530
143db7401
152980a0e
hex1ca1ce9

30022889 has 8 divisors (see below), whose sum is σ = 33738432. Its totient is φ = 26508240.

The previous prime is 30022871. The next prime is 30022897. The reversal of 30022889 is 98822003.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30022889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30022819) by changing a digit.

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, 49907 + ... + 50504.

It is an arithmetic number, because the mean of its divisors is an integer number (4217304).

Almost surely, 230022889 is an apocalyptic number.

It is an amenable number.

30022889 is a deficient number, since it is larger than the sum of its proper divisors (3715543).

30022889 is a wasteful number, since it uses less digits than its factorization.

30022889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100447.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 30022889 is about 5479.3146469244. The cubic root of 30022889 is about 310.8022543340.

The spelling of 30022889 in words is "thirty million, twenty-two thousand, eight hundred eighty-nine".

Divisors: 1 13 23 299 100411 1305343 2309453 30022889