Search a number
-
+
188851513984 = 277210771779
BaseRepresentation
bin1010111111100001101…
…1010110101010000000
3200001110101102220201221
42233320123112222000
511043231441421414
6222431315204424
716433626245220
oct2577033265200
9601411386657
10188851513984
11731008356a1
1230725ba6714
1314a68705aa3
1491d75dc080
154da4854224
hex2bf86d6a80

188851513984 has 32 divisors (see below), whose sum is σ = 429974431200. Its totient is φ = 80936362752.

The previous prime is 188851513969. The next prime is 188851514029. The reversal of 188851513984 is 489315158881.

188851513984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105384994 + ... + 105386785.

It is an arithmetic number, because the mean of its divisors is an integer number (13436700975).

Almost surely, 2188851513984 is an apocalyptic number.

188851513984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

188851513984 is an abundant number, since it is smaller than the sum of its proper divisors (241122917216).

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

188851513984 is an equidigital number, since it uses as much as digits as its factorization.

188851513984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210771800 (or 210771788 counting only the distinct ones).

The product of its digits is 11059200, while the sum is 61.

The spelling of 188851513984 in words is "one hundred eighty-eight billion, eight hundred fifty-one million, five hundred thirteen thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 448 896 210771779 421543558 843087116 1475402453 1686174232 2950804906 3372348464 5901609812 6744696928 11803219624 13489393856 23606439248 26978787712 47212878496 94425756992 188851513984