Search a number
-
+
7690145697 = 331321909247
BaseRepresentation
bin1110010100101111…
…00100111110100001
3201211221100212201000
413022113210332201
5111222134130242
63311030302213
7361366105563
oct71227447641
921757325630
107690145697
113296983313
1215a74b7969
139572a4b90
1452d48b333
153001e1a4c
hex1ca5e4fa1

7690145697 has 16 divisors (see below), whose sum is σ = 12269178880. Its totient is φ = 4732397136.

The previous prime is 7690145693. The next prime is 7690145719. The reversal of 7690145697 is 7965410967.

7690145697 is a `hidden beast` number, since 7 + 69 + 0 + 14 + 569 + 7 = 666.

7690145697 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7690145697 - 22 = 7690145693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7690145693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10954273 + ... + 10954974.

It is an arithmetic number, because the mean of its divisors is an integer number (766823680).

Almost surely, 27690145697 is an apocalyptic number.

It is an amenable number.

7690145697 is a deficient number, since it is larger than the sum of its proper divisors (4579033183).

7690145697 is a wasteful number, since it uses less digits than its factorization.

7690145697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21909269 (or 21909263 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The square root of 7690145697 is about 87693.4757949530. The cubic root of 7690145697 is about 1973.8380771830.

The spelling of 7690145697 in words is "seven billion, six hundred ninety million, one hundred forty-five thousand, six hundred ninety-seven".

Divisors: 1 3 9 13 27 39 117 351 21909247 65727741 197183223 284820211 591549669 854460633 2563381899 7690145697