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708680 = 23572531
BaseRepresentation
bin10101101000001001000
31100000010102
42231001020
5140134210
623104532
76011060
oct2550110
91300112
10708680
11444495
122a2148
131ba74b
141463a0
15deea5
hexad048

708680 has 32 divisors (see below), whose sum is σ = 1823040. Its totient is φ = 242880.

The previous prime is 708667. The next prime is 708689. The reversal of 708680 is 86807.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (708689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986 + ... + 1545.

It is an arithmetic number, because the mean of its divisors is an integer number (56970).

2708680 is an apocalyptic number.

708680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

708680 is an abundant number, since it is smaller than the sum of its proper divisors (1114360).

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

708680 is a wasteful number, since it uses less digits than its factorization.

708680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549 (or 2545 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 708680 is about 841.8313370266. The cubic root of 708680 is about 89.1558939247.

The spelling of 708680 in words is "seven hundred eight thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 2531 5062 10124 12655 17717 20248 25310 35434 50620 70868 88585 101240 141736 177170 354340 708680