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30591902369 = 714929330683
BaseRepresentation
bin11100011111011010…
…110110001010100001
32220222000001122210002
4130133122312022201
51000123011333434
622015334345345
72132044610510
oct343732661241
986860048702
1030591902369
1111a79371046
125b191bb255
132b66bb6ca2
1416a2cc4677
15be0a9757e
hex71f6b62a1

30591902369 has 8 divisors (see below), whose sum is σ = 35196820800. Its totient is φ = 26045645616.

The previous prime is 30591902357. The next prime is 30591902377. The reversal of 30591902369 is 96320919503.

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 30591902369 - 216 = 30591836833 is a prime.

It is a super-2 number, since 2×305919023692 (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 (30591902269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14664299 + ... + 14666384.

It is an arithmetic number, because the mean of its divisors is an integer number (4399602600).

Almost surely, 230591902369 is an apocalyptic number.

It is an amenable number.

30591902369 is a deficient number, since it is larger than the sum of its proper divisors (4604918431).

30591902369 is a wasteful number, since it uses less digits than its factorization.

30591902369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29330839.

The product of its (nonzero) digits is 393660, while the sum is 47.

The spelling of 30591902369 in words is "thirty billion, five hundred ninety-one million, nine hundred two thousand, three hundred sixty-nine".

Divisors: 1 7 149 1043 29330683 205314781 4370271767 30591902369