Search a number
-
+
30469108333689 = 321721082332
BaseRepresentation
bin1101110110110001001000…
…11000001111110001111001
310222212211002112210020010100
412323120210120033301321
512443201213213134224
6144445152022510013
76263214623420514
oct673304430176171
9128784075706110
1030469108333689
119787970365413
12350114a895309
1314002bc55881c
147749d9977d7b
1537c8888a0ac9
hex1bb62460fc79

30469108333689 has 27 divisors (see below), whose sum is σ = 46752531677293. Its totient is φ = 19117695259392.

The previous prime is 30469108333679. The next prime is 30469108333721. The reversal of 30469108333689 is 98633380196403.

The square root of 30469108333689 is 5519883.

It is a perfect power (a square), and thus also a powerful number.

30469108333689 is a `hidden beast` number, since 3 + 0 + 469 + 1 + 0 + 83 + 33 + 68 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8034486623289 + 22434621710400 = 2834517^2 + 4736520^2 .

It is not a de Polignac number, because 30469108333689 - 27 = 30469108333561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30469108333619) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 281459917 + ... + 281568149.

Almost surely, 230469108333689 is an apocalyptic number.

30469108333689 is the 5519883-rd square number.

30469108333689 is the 2759942-nd centered octagonal number.

It is an amenable number.

30469108333689 is a deficient number, since it is larger than the sum of its proper divisors (16283423343604).

30469108333689 is an frugal number, since it uses more digits than its factorization.

30469108333689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216506 (or 108253 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 63.

The spelling of 30469108333689 in words is "thirty trillion, four hundred sixty-nine billion, one hundred eight million, three hundred thirty-three thousand, six hundred eighty-nine".

Divisors: 1 3 9 17 51 153 289 867 2601 108233 324699 974097 1839961 5519883 16559649 31279337 93838011 281514033 11714382289 35143146867 105429440601 199144498913 597433496739 1792300490217 3385456481521 10156369444563 30469108333689