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30309697153 = 71426897143
BaseRepresentation
bin11100001110100110…
…010100011010000001
32220020100001011000001
4130032212110122001
5444033240302103
621531334000001
72122050114001
oct341646243201
986210034001
1030309697153
111194404109a
125a5a7a6001
132b205a9958
141677624001
15bc5e0101d
hex70e994681

30309697153 has 4 divisors (see below), whose sum is σ = 30736594368. Its totient is φ = 29882799940.

The previous prime is 30309697147. The next prime is 30309697181. The reversal of 30309697153 is 35179690303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30309697153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30309697133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213448501 + ... + 213448642.

It is an arithmetic number, because the mean of its divisors is an integer number (7684148592).

Almost surely, 230309697153 is an apocalyptic number.

It is an amenable number.

30309697153 is a deficient number, since it is larger than the sum of its proper divisors (426897215).

30309697153 is an equidigital number, since it uses as much as digits as its factorization.

30309697153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426897214.

The product of its (nonzero) digits is 459270, while the sum is 46.

The spelling of 30309697153 in words is "thirty billion, three hundred nine million, six hundred ninety-seven thousand, one hundred fifty-three".

Divisors: 1 71 426897143 30309697153