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1078272 = 2103413
BaseRepresentation
bin100000111010000000000
32000210010000
410013100000
5234001042
635040000
712110436
oct4072000
92023100
101078272
11677138
12440000
132b9a40
14200d56
1516474c
hex107400

1078272 has 110 divisors (see below), whose sum is σ = 3467618. Its totient is φ = 331776.

The previous prime is 1078247. The next prime is 1078331. The reversal of 1078272 is 2728701.

It can be written as a sum of positive squares in only one way, i.e., 746496 + 331776 = 864^2 + 576^2 .

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

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 82938 + ... + 82950.

21078272 is an apocalyptic number.

1078272 is a gapful number since it is divisible by the number (12) 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 1078272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1733809).

1078272 is an abundant number, since it is smaller than the sum of its proper divisors (2389346).

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

1078272 is an equidigital number, since it uses as much as digits as its factorization.

1078272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45 (or 18 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 1078272 is about 1038.3987673336. The cubic root of 1078272 is about 102.5438083608.

The spelling of 1078272 in words is "one million, seventy-eight thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 81 96 104 108 117 128 144 156 162 192 208 216 234 256 288 312 324 351 384 416 432 468 512 576 624 648 702 768 832 864 936 1024 1053 1152 1248 1296 1404 1536 1664 1728 1872 2106 2304 2496 2592 2808 3072 3328 3456 3744 4212 4608 4992 5184 5616 6656 6912 7488 8424 9216 9984 10368 11232 13312 13824 14976 16848 19968 20736 22464 27648 29952 33696 39936 41472 44928 59904 67392 82944 89856 119808 134784 179712 269568 359424 539136 1078272