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3689787007 = 127121723873
BaseRepresentation
bin1101101111101101…
…1010111001111111
3100112010222121020001
43123323122321333
530024041141012
61410044535131
7160302446344
oct33373327177
910463877201
103689787007
111623874655
1286b8514a7
1346a58912a
142700827cb
15168dea357
hexdbedae7f

3689787007 has 8 divisors (see below), whose sum is σ = 3722052096. Its totient is φ = 3657572352.

The previous prime is 3689786999. The next prime is 3689787047. The reversal of 3689787007 is 7007879863.

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 3689787007 - 23 = 3689786999 is a prime.

It is a super-2 number, since 2×36897870072 = 27229056314052036098, 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 (3689787047) 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, 142623 + ... + 166495.

It is an arithmetic number, because the mean of its divisors is an integer number (465256512).

Almost surely, 23689787007 is an apocalyptic number.

3689787007 is a deficient number, since it is larger than the sum of its proper divisors (32265089).

3689787007 is a wasteful number, since it uses less digits than its factorization.

3689787007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25217.

The product of its (nonzero) digits is 3556224, while the sum is 55.

The square root of 3689787007 is about 60743.6170062337. The cubic root of 3689787007 is about 1545.2559780865.

It can be divided in two parts, 36897 and 87007, that added together give a square (123904 = 3522).

The spelling of 3689787007 in words is "three billion, six hundred eighty-nine million, seven hundred eighty-seven thousand, seven".

Divisors: 1 127 1217 23873 154559 3031871 29053441 3689787007