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30777704143 = 479719133529
BaseRepresentation
bin11100101010011111…
…100111111011001111
32221102221200100220021
4130222133213323033
51001013043013033
622050013003011
72136462111604
oct345237477317
987387610807
1030777704143
111206423672a
125b6b483467
132b9653c874
1416bd84c6ab
15c02049b2d
hex72a7e7ecf

30777704143 has 16 divisors (see below), whose sum is σ = 31782199680. Its totient is φ = 29788286976.

The previous prime is 30777704141. The next prime is 30777704201. The reversal of 30777704143 is 34140777703.

It is a cyclic number.

It is not a de Polignac number, because 30777704143 - 21 = 30777704141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30777704143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30777704141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8719603 + ... + 8723131.

It is an arithmetic number, because the mean of its divisors is an integer number (1986387480).

Almost surely, 230777704143 is an apocalyptic number.

30777704143 is a deficient number, since it is larger than the sum of its proper divisors (1004495537).

30777704143 is a wasteful number, since it uses less digits than its factorization.

30777704143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586.

The product of its (nonzero) digits is 345744, while the sum is 43.

The spelling of 30777704143 in words is "thirty billion, seven hundred seventy-seven million, seven hundred four thousand, one hundred forty-three".

Divisors: 1 47 97 1913 3529 4559 89911 165863 185561 342313 6750977 8721367 16088711 317295919 654844769 30777704143