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109357872 = 2431331761
BaseRepresentation
bin1101000010010…
…10101100110000
321121202221210120
412201022230300
5210443422442
614503530240
72465345421
oct641125460
9247687716
10109357872
1156803208
1230759980
131986c000
1410749648
1599024ec
hex684ab30

109357872 has 160 divisors (see below), whose sum is σ = 329353920. Its totient is φ = 31150080.

The previous prime is 109357837. The next prime is 109357877. The reversal of 109357872 is 278753901.

It is not an unprimeable number, because it can be changed into a prime (109357877) 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 31 ways as a sum of consecutive naturals, for example, 1792722 + ... + 1792782.

It is an arithmetic number, because the mean of its divisors is an integer number (2058462).

Almost surely, 2109357872 is an apocalyptic number.

109357872 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 109357872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164676960).

109357872 is an abundant number, since it is smaller than the sum of its proper divisors (219996048).

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

109357872 is a wasteful number, since it uses less digits than its factorization.

109357872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 109357872 is about 10457.4314245899. The cubic root of 109357872 is about 478.2078308201.

The spelling of 109357872 in words is "one hundred nine million, three hundred fifty-seven thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 13 16 17 24 26 34 39 48 51 52 61 68 78 102 104 122 136 156 169 183 204 208 221 244 272 312 338 366 408 442 488 507 624 663 676 732 793 816 884 976 1014 1037 1326 1352 1464 1586 1768 2028 2074 2197 2379 2652 2704 2873 2928 3111 3172 3536 4056 4148 4394 4758 5304 5746 6222 6344 6591 8112 8296 8619 8788 9516 10309 10608 11492 12444 12688 13182 13481 16592 17238 17576 19032 20618 22984 24888 26364 26962 30927 34476 35152 37349 38064 40443 41236 45968 49776 52728 53924 61854 68952 74698 80886 82472 105456 107848 112047 123708 134017 137904 149396 161772 164944 175253 215696 224094 247416 268034 298792 323544 350506 402051 448188 494832 525759 536068 597584 647088 701012 804102 896376 1051518 1072136 1402024 1608204 1792752 2103036 2144272 2278289 2804048 3216408 4206072 4556578 6432816 6834867 8412144 9113156 13669734 18226312 27339468 36452624 54678936 109357872