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381275001877 = 71138912729109
BaseRepresentation
bin1011000110001011100…
…00101101010000010101
31100110010201011220111211
411203011300231100111
522221322400030002
6451053314301421
736355231020520
oct5430560552025
91313121156454
10381275001877
11137774887140
1261a88287871
1329c531582b3
141464d371bb7
159db7a80dd7
hex58c5c2d415

381275001877 has 16 divisors (see below), whose sum is σ = 476577878400. Its totient is φ = 296333634240.

The previous prime is 381275001857. The next prime is 381275001917. The reversal of 381275001877 is 778100572183.

It is not a de Polignac number, because 381275001877 - 211 = 381274999829 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 381275001877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381275001847) 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 15 ways as a sum of consecutive naturals, for example, 6334602 + ... + 6394507.

It is an arithmetic number, because the mean of its divisors is an integer number (29786117400).

Almost surely, 2381275001877 is an apocalyptic number.

It is an amenable number.

381275001877 is a deficient number, since it is larger than the sum of its proper divisors (95302876523).

381275001877 is a wasteful number, since it uses less digits than its factorization.

381275001877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12729516.

The product of its (nonzero) digits is 658560, while the sum is 49.

The spelling of 381275001877 in words is "three hundred eighty-one billion, two hundred seventy-five million, one thousand, eight hundred seventy-seven".

Divisors: 1 7 11 77 389 2723 4279 29953 12729109 89103763 140020199 980141393 4951623401 34661363807 54467857411 381275001877