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680148 = 223272699
BaseRepresentation
bin10100110000011010100
31021112222200
42212003110
5133231043
622324500
75531640
oct2460324
91245880
10680148
11425007
12289730
131aa771
14139c20
15d67d3
hexa60d4

680148 has 36 divisors (see below), whose sum is σ = 1965600. Its totient is φ = 194256.

The previous prime is 680129. The next prime is 680159. The reversal of 680148 is 841086.

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

680148 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1098 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (54600).

2680148 is an apocalyptic number.

It is an amenable number.

680148 is an abundant number, since it is smaller than the sum of its proper divisors (1285452).

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

680148 is a wasteful number, since it uses less digits than its factorization.

680148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2716 (or 2711 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 680148 is about 824.7108584225. The cubic root of 680148 is about 87.9429726940.

It can be divided in two parts, 680 and 148, that added together give a palindrome (828).

The spelling of 680148 in words is "six hundred eighty thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 2699 5398 8097 10796 16194 18893 24291 32388 37786 48582 56679 75572 97164 113358 170037 226716 340074 680148