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4109000781 = 31972087733
BaseRepresentation
bin1111010011101010…
…0110000001001101
3101121100210212102010
43310322212001031
531403401011111
61515422051433
7203552634054
oct36472460115
911540725363
104109000781
111819473116
12968119b79
13506397012
142ada0939b
15190b06aa6
hexf4ea604d

4109000781 has 8 divisors (see below), whose sum is σ = 5767018720. Its totient is φ = 2595158352.

The previous prime is 4109000747. The next prime is 4109000783. The reversal of 4109000781 is 1870009014.

4109000781 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4109000781 - 26 = 4109000717 is a prime.

It is a super-2 number, since 2×41090007812 = 33767774836517219922, which 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 (4109000783) 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, 36043810 + ... + 36043923.

It is an arithmetic number, because the mean of its divisors is an integer number (720877340).

Almost surely, 24109000781 is an apocalyptic number.

It is an amenable number.

4109000781 is a deficient number, since it is larger than the sum of its proper divisors (1658017939).

4109000781 is a wasteful number, since it uses less digits than its factorization.

4109000781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72087755.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 4109000781 is about 64101.4881340519. The cubic root of 4109000781 is about 1601.6910221739.

Adding to 4109000781 its reverse (1870009014), we get a palindrome (5979009795).

The spelling of 4109000781 in words is "four billion, one hundred nine million, seven hundred eighty-one", and thus it is an aban number.

Divisors: 1 3 19 57 72087733 216263199 1369666927 4109000781