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8968103581 = 23389917547
BaseRepresentation
bin10000101101000101…
…00110011010011101
3212011000001212100111
420112202212122131
5121331313303311
64041521330021
7435144423403
oct102642463235
925130055314
108968103581
113892295a58
1218a3496911
13acbc93088
146110b1473
153774cad21
hex2168a669d

8968103581 has 4 divisors (see below), whose sum is σ = 9358021152. Its totient is φ = 8578186012.

The previous prime is 8968103519. The next prime is 8968103591. The reversal of 8968103581 is 1853018698.

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 a cyclic number.

It is not a de Polignac number, because 8968103581 - 29 = 8968103069 is a prime.

It is a super-2 number, since 2×89681035812 (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 (8968103591) 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, 194958751 + ... + 194958796.

It is an arithmetic number, because the mean of its divisors is an integer number (2339505288).

Almost surely, 28968103581 is an apocalyptic number.

It is an amenable number.

8968103581 is a deficient number, since it is larger than the sum of its proper divisors (389917571).

8968103581 is a wasteful number, since it uses less digits than its factorization.

8968103581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389917570.

The product of its (nonzero) digits is 414720, while the sum is 49.

The square root of 8968103581 is about 94700.0717053583. The cubic root of 8968103581 is about 2077.6236097526.

The spelling of 8968103581 in words is "eight billion, nine hundred sixty-eight million, one hundred three thousand, five hundred eighty-one".

Divisors: 1 23 389917547 8968103581