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1268520 = 233511312
BaseRepresentation
bin100110101101100101000
32101110002020
410311230220
5311043040
643104440
713532211
oct4655450
92343066
101268520
11797070
12512120
13355506
14250408
151a0cd0
hex135b28

1268520 has 96 divisors (see below), whose sum is σ = 4289760. Its totient is φ = 297600.

The previous prime is 1268479. The next prime is 1268537. The reversal of 1268520 is 258621.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40905 + ... + 40935.

It is an arithmetic number, because the mean of its divisors is an integer number (44685).

21268520 is an apocalyptic number.

1268520 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 1268520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2144880).

1268520 is an abundant number, since it is smaller than the sum of its proper divisors (3021240).

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

1268520 is a wasteful number, since it uses less digits than its factorization.

1268520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1268520 is about 1126.2859317243. The cubic root of 1268520 is about 108.2511302767.

It can be divided in two parts, 126 and 8520, that added together give a triangular number (8646 = T131).

The spelling of 1268520 in words is "one million, two hundred sixty-eight thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 31 33 40 44 55 60 62 66 88 93 110 120 124 132 155 165 186 220 248 264 310 330 341 372 440 465 620 660 682 744 930 961 1023 1240 1320 1364 1705 1860 1922 2046 2728 2883 3410 3720 3844 4092 4805 5115 5766 6820 7688 8184 9610 10230 10571 11532 13640 14415 19220 20460 21142 23064 28830 31713 38440 40920 42284 52855 57660 63426 84568 105710 115320 126852 158565 211420 253704 317130 422840 634260 1268520