Search a number
-
+
26828160 = 273589157
BaseRepresentation
bin110011001010…
…1110110000000
31212111000022120
41212111312000
523332000120
62355004240
7444015132
oct146256600
955430276
1026828160
1114164437
128b99680
135734368
1437c5052
15254e140
hex1995d80

26828160 has 128 divisors (see below), whose sum is σ = 87026400. Its totient is φ = 7028736.

The previous prime is 26828149. The next prime is 26828167. The reversal of 26828160 is 6182862.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26828167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170802 + ... + 170958.

Almost surely, 226828160 is an apocalyptic number.

26828160 is a gapful number since it is divisible by the number (20) 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 26828160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43513200).

26828160 is an abundant number, since it is smaller than the sum of its proper divisors (60198240).

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

26828160 is a wasteful number, since it uses less digits than its factorization.

26828160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 26828160 is about 5179.5907174216. The cubic root of 26828160 is about 299.3622005560.

The spelling of 26828160 in words is "twenty-six million, eight hundred twenty-eight thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 89 96 120 128 157 160 178 192 240 267 314 320 356 384 445 471 480 534 628 640 712 785 890 942 960 1068 1256 1335 1424 1570 1780 1884 1920 2136 2355 2512 2670 2848 3140 3560 3768 4272 4710 5024 5340 5696 6280 7120 7536 8544 9420 10048 10680 11392 12560 13973 14240 15072 17088 18840 20096 21360 25120 27946 28480 30144 34176 37680 41919 42720 50240 55892 56960 60288 69865 75360 83838 85440 100480 111784 139730 150720 167676 170880 209595 223568 279460 301440 335352 419190 447136 558920 670704 838380 894272 1117840 1341408 1676760 1788544 2235680 2682816 3353520 4471360 5365632 6707040 8942720 13414080 26828160