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481631219077 = 1728331248181
BaseRepresentation
bin1110000001000110111…
…01010010110110000101
31201001011201002221220011
413000203131102312011
530342340043002302
61005131444310221
746540161546241
oct7004335226605
91631151087804
10481631219077
111762932a3518
12794153a2371
13365576b9a38
141944d83b421
15c7dd1d15d7
hex7023752d85

481631219077 has 4 divisors (see below), whose sum is σ = 509962467276. Its totient is φ = 453299970880.

The previous prime is 481631219071. The next prime is 481631219099. The reversal of 481631219077 is 770912136184.

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

It can be written as a sum of positive squares in 2 ways, for example, as 326636253441 + 154994965636 = 571521^2 + 393694^2 .

It is a cyclic number.

It is not a de Polignac number, because 481631219077 - 235 = 447271480709 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 481631219077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481631219071) 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, 14165624074 + ... + 14165624107.

It is an arithmetic number, because the mean of its divisors is an integer number (127490616819).

Almost surely, 2481631219077 is an apocalyptic number.

It is an amenable number.

481631219077 is a deficient number, since it is larger than the sum of its proper divisors (28331248199).

481631219077 is a wasteful number, since it uses less digits than its factorization.

481631219077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28331248198.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 481631219077 in words is "four hundred eighty-one billion, six hundred thirty-one million, two hundred nineteen thousand, seventy-seven".

Divisors: 1 17 28331248181 481631219077