Search a number
-
+
102888457632 = 253442179413
BaseRepresentation
bin101111111010010100…
…0010100010110100000
3100211120110210012020000
41133310220110112200
53141203421121012
6115133304420000
710301446313532
oct1376450242640
9324513705200
10102888457632
113a6a8941074
1217b35177600
13991906b87c
144da090d852
152a22ae8ddc
hex17f4a145a0

102888457632 has 120 divisors (see below), whose sum is σ = 302696004996. Its totient is φ = 34284377088.

The previous prime is 102888457619. The next prime is 102888457673. The reversal of 102888457632 is 236754888201.

102888457632 is a `hidden beast` number, since 10 + 28 + 8 + 8 + 4 + 576 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 70604992656 + 32283464976 = 265716^2 + 179676^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10925758 + ... + 10935170.

Almost surely, 2102888457632 is an apocalyptic number.

102888457632 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 102888457632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151348002498).

102888457632 is an abundant number, since it is smaller than the sum of its proper divisors (199807547364).

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

102888457632 is an equidigital number, since it uses as much as digits as its factorization.

102888457632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13652 (or 13635 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 102888457632 in words is "one hundred two billion, eight hundred eighty-eight million, four hundred fifty-seven thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 288 324 432 648 864 1296 2592 4217 8434 9413 12651 16868 18826 25302 28239 33736 37652 37953 50604 56478 67472 75304 75906 84717 101208 112956 113859 134944 150608 151812 169434 202416 225912 227718 254151 301216 303624 338868 341577 404832 451824 455436 508302 607248 677736 683154 762453 903648 910872 1016604 1214496 1355472 1366308 1524906 1821744 2033208 2710944 2732616 3049812 3643488 4066416 5465232 6099624 8132832 10930464 12199248 24398496 39694621 79389242 119083863 158778484 238167726 317556968 357251589 476335452 635113936 714503178 952670904 1071754767 1270227872 1429006356 1905341808 2143509534 2858012712 3215264301 3810683616 4287019068 5716025424 6430528602 8574038136 11432050848 12861057204 17148076272 25722114408 34296152544 51444228816 102888457632