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30006055689 = 3107656314243
BaseRepresentation
bin11011111100100000…
…000001001100001001
32212110011200120012220
4123330200001030021
5442423022240224
621441245524253
72111402156631
oct337440011411
985404616186
1030006055689
11117a86aa835
125994b73689
132aa270554c
1416491836c1
15ba9423279
hex6fc801309

30006055689 has 16 divisors (see below), whose sum is σ = 40390970112. Its totient is φ = 19812672848.

The previous prime is 30006055661. The next prime is 30006055727. The reversal of 30006055689 is 98655060003.

It is a cyclic number.

It is not a de Polignac number, because 30006055689 - 28 = 30006055433 is a prime.

It is a super-2 number, since 2×300060556892 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30006055689.

It is not an unprimeable number, because it can be changed into a prime (30006045689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2099602 + ... + 2113844.

It is an arithmetic number, because the mean of its divisors is an integer number (2524435632).

Almost surely, 230006055689 is an apocalyptic number.

It is an amenable number.

30006055689 is a deficient number, since it is larger than the sum of its proper divisors (10384914423).

30006055689 is a wasteful number, since it uses less digits than its factorization.

30006055689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20916.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 30006055689 in words is "thirty billion, six million, fifty-five thousand, six hundred eighty-nine".

Divisors: 1 3 107 321 6563 14243 19689 42729 702241 1524001 2106723 4572003 93476809 280430427 10002018563 30006055689