Search a number
-
+
1069740 = 223357283
BaseRepresentation
bin100000101001010101100
32000100102000
410011022230
5233212430
634532300
712043530
oct4051254
92010360
101069740
11670791
12437090
132b5ba9
141dbbc0
15161e60
hex1052ac

1069740 has 96 divisors (see below), whose sum is σ = 3816960. Its totient is φ = 243648.

The previous prime is 1069727. The next prime is 1069741. The reversal of 1069740 is 479601.

It is a super-2 number, since 2×10697402 = 2288687335200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1069741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3639 + ... + 3921.

It is an arithmetic number, because the mean of its divisors is an integer number (39760).

21069740 is an apocalyptic number.

1069740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1069740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1908480).

1069740 is an abundant number, since it is smaller than the sum of its proper divisors (2747220).

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

1069740 is a wasteful number, since it uses less digits than its factorization.

1069740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1069740 is about 1034.2823598998. The cubic root of 1069740 is about 102.2726270706.

The spelling of 1069740 in words is "one million, sixty-nine thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 84 90 105 108 126 135 140 180 189 210 252 270 283 315 378 420 540 566 630 756 849 945 1132 1260 1415 1698 1890 1981 2547 2830 3396 3780 3962 4245 5094 5660 5943 7641 7924 8490 9905 10188 11886 12735 15282 16980 17829 19810 23772 25470 29715 30564 35658 38205 39620 50940 53487 59430 71316 76410 89145 106974 118860 152820 178290 213948 267435 356580 534870 1069740