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842081830381 = 11101975125509
BaseRepresentation
bin11000100000011111111…
…11010000010111101101
32222111120010112012220001
430100033333100113231
5102244040422033011
61442502544024301
7114560400313111
oct14201777202755
92874503465801
10842081830381
112a5141270810
1211724b602091
136153c42781c
142ca8520d741
1516d879527c1
hexc40ffd05ed

842081830381 has 8 divisors (see below), whose sum is σ = 919536242400. Its totient is φ = 764777671440.

The previous prime is 842081830361. The next prime is 842081830411. The reversal of 842081830381 is 183038180248.

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 842081830381 - 25 = 842081830349 is a prime.

It is a super-2 number, since 2×8420818303812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842081830361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37551546 + ... + 37573963.

It is an arithmetic number, because the mean of its divisors is an integer number (114942030300).

Almost surely, 2842081830381 is an apocalyptic number.

It is an amenable number.

842081830381 is a deficient number, since it is larger than the sum of its proper divisors (77454412019).

842081830381 is a wasteful number, since it uses less digits than its factorization.

842081830381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75126539.

The product of its (nonzero) digits is 294912, while the sum is 46.

The spelling of 842081830381 in words is "eight hundred forty-two billion, eighty-one million, eight hundred thirty thousand, three hundred eighty-one".

Divisors: 1 11 1019 11209 75125509 826380599 76552893671 842081830381