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8481493942 = 219378372679
BaseRepresentation
bin1111110011000100…
…10101001110110110
3210220002102112102021
413321202111032312
5114332230301232
63521335503354
7420115336405
oct77142251666
923802375367
108481493942
113662644a29
121788527b5a
13a52218a8c
145a660363c
1534990a397
hex1f98953b6

8481493942 has 32 divisors (see below), whose sum is σ = 13919673600. Its totient is φ = 3861818208.

The previous prime is 8481493921. The next prime is 8481493973. The reversal of 8481493942 is 2493941848.

It is a self number, because there is not a number n which added to its sum of digits gives 8481493942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80359 + ... + 153037.

It is an arithmetic number, because the mean of its divisors is an integer number (434989800).

Almost surely, 28481493942 is an apocalyptic number.

8481493942 is a deficient number, since it is larger than the sum of its proper divisors (5438179658).

8481493942 is a wasteful number, since it uses less digits than its factorization.

8481493942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72820.

The product of its digits is 1990656, while the sum is 52.

The square root of 8481493942 is about 92095.0266952565. The cubic root of 8481493942 is about 2039.3453895753.

The spelling of 8481493942 in words is "eight billion, four hundred eighty-one million, four hundred ninety-three thousand, nine hundred forty-two".

Divisors: 1 2 19 37 38 74 83 166 703 1406 1577 3071 3154 6142 58349 72679 116698 145358 1380901 2689123 2761802 5378246 6032357 12064714 51093337 102186674 114614783 223197209 229229566 446394418 4240746971 8481493942