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30670811469 = 3231310887757
BaseRepresentation
bin11100100100000111…
…110111000101001101
32221011111112122201100
4130210013313011031
51000303211431334
622031233533313
72134023411264
oct344407670515
987144478640
1030670811469
1112009967681
125b3b714239
132b7a35496c
1416ad5855db
15be7982c99
hex7241f714d

30670811469 has 12 divisors (see below), whose sum is σ = 44443828156. Its totient is φ = 20381879232.

The previous prime is 30670811453. The next prime is 30670811471. The reversal of 30670811469 is 96411807603.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15947901225 + 14722910244 = 126285^2 + 121338^2 .

It is not a de Polignac number, because 30670811469 - 24 = 30670811453 is a prime.

It is a super-2 number, since 2×306708114692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30670811869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5441062 + ... + 5446695.

Almost surely, 230670811469 is an apocalyptic number.

It is an amenable number.

30670811469 is a deficient number, since it is larger than the sum of its proper divisors (13773016687).

30670811469 is a wasteful number, since it uses less digits than its factorization.

30670811469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10888076 (or 10888073 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 30670811469 in words is "thirty billion, six hundred seventy million, eight hundred eleven thousand, four hundred sixty-nine".

Divisors: 1 3 9 313 939 2817 10887757 32663271 97989813 3407867941 10223603823 30670811469