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104878080 = 212325569
BaseRepresentation
bin1100100000001…
…01000000000000
321022100100200100
412100011000000
5203322044310
614223522400
72412306666
oct620050000
9238310610
10104878080
11542234aa
122b159400
1318960c48
14dd00c36
159319ec0
hex6405000

104878080 has 156 divisors (see below), whose sum is σ = 364171860. Its totient is φ = 27918336.

The previous prime is 104878079. The next prime is 104878127. The reversal of 104878080 is 80878401.

It is a Cunningham number, because it is equal to 102412-1.

It can be written as a sum of positive squares in 2 ways, for example, as 26873856 + 78004224 = 5184^2 + 8832^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 184036 + ... + 184604.

It is an arithmetic number, because the mean of its divisors is an integer number (2334435).

Almost surely, 2104878080 is an apocalyptic number.

104878080 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 104878080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182085930).

104878080 is an abundant number, since it is smaller than the sum of its proper divisors (259293780).

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

104878080 is an equidigital number, since it uses as much as digits as its factorization.

104878080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 104878080 is about 10240.9999511766. Note that the first 4 decimals coincide. The cubic root of 104878080 is about 471.5867300900.

The spelling of 104878080 in words is "one hundred four million, eight hundred seventy-eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 256 288 320 360 384 480 512 569 576 640 720 768 960 1024 1138 1152 1280 1440 1536 1707 1920 2048 2276 2304 2560 2845 2880 3072 3414 3840 4096 4552 4608 5120 5121 5690 5760 6144 6828 7680 8535 9104 9216 10240 10242 11380 11520 12288 13656 15360 17070 18208 18432 20480 20484 22760 23040 25605 27312 30720 34140 36416 36864 40968 45520 46080 51210 54624 61440 68280 72832 81936 91040 92160 102420 109248 136560 145664 163872 182080 184320 204840 218496 273120 291328 327744 364160 409680 436992 546240 582656 655488 728320 819360 873984 1092480 1165312 1310976 1456640 1638720 1747968 2184960 2330624 2621952 2913280 3277440 3495936 4369920 5243904 5826560 6554880 6991872 8739840 10487808 11653120 13109760 17479680 20975616 26219520 34959360 52439040 104878080