Search a number
-
+
1024738960 = 24572733581
BaseRepresentation
bin111101000101000…
…100011010010000
32122102020010120211
4331011010122100
54044313121320
6245403413504
734252065100
oct7505043220
92572203524
101024738960
11486490603
12247224294
131343bc61b
149a14b200
155ee6b55a
hex3d144690

1024738960 has 120 divisors (see below), whose sum is σ = 2810250936. Its totient is φ = 346429440.

The previous prime is 1024738931. The next prime is 1024738961. The reversal of 1024738960 is 698374201.

It can be written as a sum of positive squares in 4 ways, for example, as 308213136 + 716525824 = 17556^2 + 26768^2 .

It is a super-2 number, since 2×10247389602 = 2100179872283763200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (1024738961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284370 + ... + 287950.

Almost surely, 21024738960 is an apocalyptic number.

1024738960 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 1024738960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1405125468).

1024738960 is an abundant number, since it is smaller than the sum of its proper divisors (1785511976).

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

1024738960 is a wasteful number, since it uses less digits than its factorization.

1024738960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681 (or 3668 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1024738960 is about 32011.5441676905. The cubic root of 1024738960 is about 1008.1792376743.

The spelling of 1024738960 in words is "one billion, twenty-four million, seven hundred thirty-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 73 80 98 112 140 146 196 245 280 292 365 392 490 511 560 584 730 784 980 1022 1168 1460 1960 2044 2555 2920 3577 3581 3920 4088 5110 5840 7154 7162 8176 10220 14308 14324 17885 17905 20440 25067 28616 28648 35770 35810 40880 50134 57232 57296 71540 71620 100268 125335 143080 143240 175469 200536 250670 261413 286160 286480 350938 401072 501340 522826 701876 877345 1002680 1045652 1307065 1403752 1754690 1829891 2005360 2091304 2614130 2807504 3509380 3659782 4182608 5228260 7018760 7319564 9149455 10456520 12809237 14037520 14639128 18298910 20913040 25618474 29278256 36597820 51236948 64046185 73195640 102473896 128092370 146391280 204947792 256184740 512369480 1024738960