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7660 = 225383
BaseRepresentation
bin1110111101100
3101111201
41313230
5221120
655244
731222
oct16754
911451
107660
115834
124524
133643
142b12
15240a
hex1dec

7660 has 12 divisors (see below), whose sum is σ = 16128. Its totient is φ = 3056.

The previous prime is 7649. The next prime is 7669. The reversal of 7660 is 667.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (7669) 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, 172 + ... + 211.

It is an arithmetic number, because the mean of its divisors is an integer number (1344).

27660 is an apocalyptic number.

It is an amenable number.

7660 is an abundant number, since it is smaller than the sum of its proper divisors (8468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8064).

7660 is a wasteful number, since it uses less digits than its factorization.

7660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 7660 is about 87.5214259482. The cubic root of 7660 is about 19.7125552336.

It can be divided in two parts, 76 and 60, that multiplied together give a triangular number (4560 = T95).

The spelling of 7660 in words is "seven thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 383 766 1532 1915 3830 7660