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68842700 = 22521921907
BaseRepresentation
bin1000001101001…
…11010011001100
311210112120102122
410012213103030
5120110431300
610455312112
71464103403
oct406472314
9153476378
1068842700
11359505a3
121b07b638
1311354b34
14920063a
15609cc85
hex41a74cc

68842700 has 54 divisors (see below), whose sum is σ = 157747716. Its totient is φ = 26074080.

The previous prime is 68842691. The next prime is 68842717. The reversal of 68842700 is 724886.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 35147 + ... + 37053.

It is an arithmetic number, because the mean of its divisors is an integer number (2921254).

Almost surely, 268842700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68842700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78873858).

68842700 is an abundant number, since it is smaller than the sum of its proper divisors (88905016).

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

68842700 is a wasteful number, since it uses less digits than its factorization.

68842700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959 (or 1933 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 68842700 is about 8297.1501131413. The cubic root of 68842700 is about 409.8446764416.

The spelling of 68842700 in words is "sixty-eight million, eight hundred forty-two thousand, seven hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 190 361 380 475 722 950 1444 1805 1900 1907 3610 3814 7220 7628 9025 9535 18050 19070 36100 36233 38140 47675 72466 95350 144932 181165 190700 362330 688427 724660 905825 1376854 1811650 2753708 3442135 3623300 6884270 13768540 17210675 34421350 68842700