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30193988159 = 148920278031
BaseRepresentation
bin11100000111101100…
…111011001000111111
32212221021022112002202
4130013230323020333
5443314130110114
621512041542115
72116143443666
oct340754731077
985837275082
1030193988159
11118947a0225
125a27aa493b
132b02625baa
141666103ddd
15bbab96cde
hex707b3b23f

30193988159 has 4 divisors (see below), whose sum is σ = 30214267680. Its totient is φ = 30173708640.

The previous prime is 30193988147. The next prime is 30193988161. The reversal of 30193988159 is 95188939103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30193988159 - 228 = 29925552703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30193988359) 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, 10137527 + ... + 10140504.

It is an arithmetic number, because the mean of its divisors is an integer number (7553566920).

Almost surely, 230193988159 is an apocalyptic number.

30193988159 is a deficient number, since it is larger than the sum of its proper divisors (20279521).

30193988159 is a wasteful number, since it uses less digits than its factorization.

30193988159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20279520.

The product of its (nonzero) digits is 2099520, while the sum is 56.

The spelling of 30193988159 in words is "thirty billion, one hundred ninety-three million, nine hundred eighty-eight thousand, one hundred fifty-nine".

Divisors: 1 1489 20278031 30193988159