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30866738369 = 231737757411
BaseRepresentation
bin11100101111110011…
…010000110011000001
32221200011012202220012
4130233303100303001
51001203341111434
622102513154305
72141622642605
oct345763206301
987604182805
1030866738369
11120aa518435
125b9525b995
132babb1403c
1416cb5c7505
15c09c853ce
hex72fcd0cc1

30866738369 has 8 divisors (see below), whose sum is σ = 32394952512. Its totient is φ = 29354039440.

The previous prime is 30866738351. The next prime is 30866738389. The reversal of 30866738369 is 96383766803.

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-30866738369 is a prime.

It is a super-2 number, since 2×308667383692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30866738389) 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, 3874727 + ... + 3882684.

It is an arithmetic number, because the mean of its divisors is an integer number (4049369064).

Almost surely, 230866738369 is an apocalyptic number.

It is an amenable number.

30866738369 is a deficient number, since it is larger than the sum of its proper divisors (1528214143).

30866738369 is a wasteful number, since it uses less digits than its factorization.

30866738369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7757607.

The product of its (nonzero) digits is 23514624, while the sum is 59.

The spelling of 30866738369 in words is "thirty billion, eight hundred sixty-six million, seven hundred thirty-eight thousand, three hundred sixty-nine".

Divisors: 1 23 173 3979 7757411 178420453 1342032103 30866738369