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30777177121 = 257823145511
BaseRepresentation
bin11100101010011101…
…100111010000100001
32221102220200120221221
4130222131213100201
51001012424131441
622045553415041
72136454455235
oct345235472041
987386616857
1030777177121
1112063a06779
125b6b26a481
132b963b6a12
1416bd7525c5
15c01e938d1
hex72a767421

30777177121 has 8 divisors (see below), whose sum is σ = 30934687104. Its totient is φ = 30619960320.

The previous prime is 30777177097. The next prime is 30777177133. The reversal of 30777177121 is 12177177703.

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 30777177121 - 29 = 30777176609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30777177181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138756 + ... + 284266.

It is an arithmetic number, because the mean of its divisors is an integer number (3866835888).

Almost surely, 230777177121 is an apocalyptic number.

It is an amenable number.

30777177121 is a deficient number, since it is larger than the sum of its proper divisors (157509983).

30777177121 is a wasteful number, since it uses less digits than its factorization.

30777177121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146591.

The product of its (nonzero) digits is 100842, while the sum is 43.

The spelling of 30777177121 in words is "thirty billion, seven hundred seventy-seven million, one hundred seventy-seven thousand, one hundred twenty-one".

Divisors: 1 257 823 145511 211511 37396327 119755553 30777177121