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7683490381 = 71097641483
BaseRepresentation
bin1110010011111100…
…01100001001001101
3201211110211202022211
413021332030021031
5111213433143011
63310231510421
7361255406410
oct71176141115
921743752284
107683490381
113293148056
1215a5228411
13955ab4818
1452c637b77
152ee829b21
hex1c9f8c24d

7683490381 has 4 divisors (see below), whose sum is σ = 8781131872. Its totient is φ = 6585848892.

The previous prime is 7683490369. The next prime is 7683490439. The reversal of 7683490381 is 1830943867.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7683490381 - 25 = 7683490349 is a prime.

It is a super-2 number, since 2×76834903812 (a number of 21 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 (7683490081) 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 3 ways as a sum of consecutive naturals, for example, 548820735 + ... + 548820748.

It is an arithmetic number, because the mean of its divisors is an integer number (2195282968).

Almost surely, 27683490381 is an apocalyptic number.

It is an amenable number.

7683490381 is a deficient number, since it is larger than the sum of its proper divisors (1097641491).

7683490381 is a wasteful number, since it uses less digits than its factorization.

7683490381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097641490.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 7683490381 is about 87655.5211096255. The cubic root of 7683490381 is about 1973.2685037716.

The spelling of 7683490381 in words is "seven billion, six hundred eighty-three million, four hundred ninety thousand, three hundred eighty-one".

Divisors: 1 7 1097641483 7683490381