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1052280 = 233253779
BaseRepresentation
bin100000000111001111000
31222110110100
410000321320
5232133110
634315400
711641605
oct4007170
91873410
101052280
11659659
12428b60
132aac68
141d56ac
1515bbc0
hex100e78

1052280 has 96 divisors (see below), whose sum is σ = 3556800. Its totient is φ = 269568.

The previous prime is 1052279. The next prime is 1052281. The reversal of 1052280 is 822501.

It is an interprime number because it is at equal distance from previous prime (1052279) and next prime (1052281).

It is a super-2 number, since 2×10522802 = 2214586396800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052281) 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, 13281 + ... + 13359.

It is an arithmetic number, because the mean of its divisors is an integer number (37050).

21052280 is an apocalyptic number.

1052280 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 1052280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1778400).

1052280 is an abundant number, since it is smaller than the sum of its proper divisors (2504520).

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

1052280 is a wasteful number, since it uses less digits than its factorization.

1052280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1052280 is about 1025.8069993912. The cubic root of 1052280 is about 101.7131502329.

Adding to 1052280 its reverse (822501), we get a palindrome (1874781).

The spelling of 1052280 in words is "one million, fifty-two thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 37 40 45 60 72 74 79 90 111 120 148 158 180 185 222 237 296 316 333 360 370 395 444 474 555 632 666 711 740 790 888 948 1110 1185 1332 1422 1480 1580 1665 1896 2220 2370 2664 2844 2923 3160 3330 3555 4440 4740 5688 5846 6660 7110 8769 9480 11692 13320 14220 14615 17538 23384 26307 28440 29230 35076 43845 52614 58460 70152 87690 105228 116920 131535 175380 210456 263070 350760 526140 1052280