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87886080 = 283352543
BaseRepresentation
bin1010011110100…
…00100100000000
320010101002001000
411033100210000
5134444323310
612415412000
72115006432
oct517204400
9203332030
1087886080
1145678127
1225524000
13152919c9
14b95a652
157ab04c0
hex53d0900

87886080 has 144 divisors (see below), whose sum is σ = 311996160. Its totient is φ = 23427072.

The previous prime is 87886079. The next prime is 87886081. The reversal of 87886080 is 8068878.

It is an interprime number because it is at equal distance from previous prime (87886079) and next prime (87886081).

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (87886081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33289 + ... + 35831.

It is an arithmetic number, because the mean of its divisors is an integer number (2166640).

Almost surely, 287886080 is an apocalyptic number.

87886080 is a gapful number since it is divisible by the number (80) 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 87886080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155998080).

87886080 is an abundant number, since it is smaller than the sum of its proper divisors (224110080).

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

87886080 is a wasteful number, since it uses less digits than its factorization.

87886080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573 (or 2553 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The square root of 87886080 is about 9374.7575968662. The cubic root of 87886080 is about 444.6039990097.

The spelling of 87886080 in words is "eighty-seven million, eight hundred eighty-six thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 216 240 256 270 288 320 360 384 432 480 540 576 640 720 768 864 960 1080 1152 1280 1440 1728 1920 2160 2304 2543 2880 3456 3840 4320 5086 5760 6912 7629 8640 10172 11520 12715 15258 17280 20344 22887 25430 30516 34560 38145 40688 45774 50860 61032 68661 76290 81376 91548 101720 114435 122064 137322 152580 162752 183096 203440 228870 244128 274644 305160 325504 343305 366192 406880 457740 488256 549288 610320 651008 686610 732384 813760 915480 976512 1098576 1220640 1373220 1464768 1627520 1830960 1953024 2197152 2441280 2746440 2929536 3255040 3661920 4394304 4882560 5492880 5859072 7323840 8788608 9765120 10985760 14647680 17577216 21971520 29295360 43943040 87886080