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26531120 = 2457115973
BaseRepresentation
bin110010100110…
…1010100110000
31211220220212002
41211031110300
523242443440
62344353132
7441340130
oct145152460
954826762
1026531120
1113a81250
128a757a8
13565c0b5
143748ac0
1524e1115
hex194d530

26531120 has 160 divisors (see below), whose sum is σ = 79280640. Its totient is φ = 8017920.

The previous prime is 26531093. The next prime is 26531159. The reversal of 26531120 is 2113562.

26531120 is nontrivially palindromic in base 12.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 26531092 and 26531101.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 363404 + ... + 363476.

It is an arithmetic number, because the mean of its divisors is an integer number (495504).

Almost surely, 226531120 is an apocalyptic number.

26531120 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 26531120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39640320).

26531120 is an abundant number, since it is smaller than the sum of its proper divisors (52749520).

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

26531120 is a wasteful number, since it uses less digits than its factorization.

26531120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 26531120 is about 5150.8368252159. The cubic root of 26531120 is about 298.2532567733.

Adding to 26531120 its reverse (2113562), we get a palindrome (28644682).

It can be divided in two parts, 2653 and 1120, that added together give a palindrome (3773).

The spelling of 26531120 in words is "twenty-six million, five hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 11 14 16 20 22 28 35 40 44 55 56 59 70 73 77 80 88 110 112 118 140 146 154 176 220 236 280 292 295 308 365 385 413 440 472 511 560 584 590 616 649 730 770 803 826 880 944 1022 1168 1180 1232 1298 1460 1540 1606 1652 2044 2065 2360 2555 2596 2920 3080 3212 3245 3304 4015 4088 4130 4307 4543 4720 5110 5192 5621 5840 6160 6424 6490 6608 8030 8176 8260 8614 9086 10220 10384 11242 12848 12980 16060 16520 17228 18172 20440 21535 22484 22715 25960 28105 30149 32120 33040 34456 36344 40880 43070 44968 45430 47377 51920 56210 60298 64240 68912 72688 86140 89936 90860 94754 112420 120596 150745 172280 181720 189508 224840 236885 241192 301490 331639 344560 363440 379016 449680 473770 482384 602980 663278 758032 947540 1205960 1326556 1658195 1895080 2411920 2653112 3316390 3790160 5306224 6632780 13265560 26531120