Search a number
-
+
102025008 = 24368747
BaseRepresentation
bin1100001010011…
…00011100110000
321002222102000000
412011030130300
5202104300013
614042430000
72346125001
oct605143460
9232872000
10102025008
1152654998
122a202300
13181a2437
14d79b1a8
158e54973
hex614c730

102025008 has 70 divisors (see below), whose sum is σ = 296408484. Its totient is φ = 34004448.

The previous prime is 102024977. The next prime is 102025031. The reversal of 102025008 is 800520201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 7291 + ... + 16037.

Almost surely, 2102025008 is an apocalyptic number.

102025008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

102025008 is the 5832-nd octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102025008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148204242).

102025008 is an abundant number, since it is smaller than the sum of its proper divisors (194383476).

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

102025008 is an frugal number, since it uses more digits than its factorization.

102025008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8773 (or 8752 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 102025008 is about 10100.7429429721. The cubic root of 102025008 is about 467.2710545508.

Adding to 102025008 its reverse (800520201), we get a palindrome (902545209).

The spelling of 102025008 in words is "one hundred two million, twenty-five thousand, eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 243 324 432 486 648 729 972 1296 1458 1944 2916 3888 5832 8747 11664 17494 26241 34988 52482 69976 78723 104964 139952 157446 209928 236169 314892 419856 472338 629784 708507 944676 1259568 1417014 1889352 2125521 2834028 3778704 4251042 5668056 6376563 8502084 11336112 12753126 17004168 25506252 34008336 51012504 102025008