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30006889 = 113773727
BaseRepresentation
bin111001001110…
…1111001101001
32002110111201021
41302131321221
530140210024
62551052441
7513024433
oct162357151
962414637
1030006889
1115a35690
12a071121
1362a8173
143db1653
15297ade4
hex1c9de69

30006889 has 8 divisors (see below), whose sum is σ = 33619968. Its totient is φ = 26541360.

The previous prime is 30006883. The next prime is 30006913. The reversal of 30006889 is 98860003.

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

It is a cyclic number.

It is not a de Polignac number, because 30006889 - 25 = 30006857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30006883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36457 + ... + 37270.

It is an arithmetic number, because the mean of its divisors is an integer number (4202496).

Almost surely, 230006889 is an apocalyptic number.

It is an amenable number.

30006889 is a deficient number, since it is larger than the sum of its proper divisors (3613079).

30006889 is a wasteful number, since it uses less digits than its factorization.

30006889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73775.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 30006889 is about 5477.8544157361. The cubic root of 30006889 is about 310.7470329137.

It can be divided in two parts, 3000 and 6889, that added together give a palindrome (9889).

The spelling of 30006889 in words is "thirty million, six thousand, eight hundred eighty-nine".

Divisors: 1 11 37 407 73727 810997 2727899 30006889