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102130648081 = 7111326372053
BaseRepresentation
bin101111100011101110…
…1100000010000010001
3100202121122211110221121
41133013131200100101
53133130421214311
6114530154122241
710243615120330
oct1370735402021
9322548743847
10102130648081
113a34a0a7590
1217963420381
13982806b557
144d2c007d17
1529cb307b71
hex17c7760411

102130648081 has 8 divisors (see below), whose sum is σ = 127331717184. Its totient is φ = 79582323120.

The previous prime is 102130648079. The next prime is 102130648129. The reversal of 102130648081 is 180846031201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102130648081 - 21 = 102130648079 is a prime.

It is a super-2 number, since 2×1021306480812 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102130648481) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 663185950 + ... + 663186103.

It is an arithmetic number, because the mean of its divisors is an integer number (15916464648).

Almost surely, 2102130648081 is an apocalyptic number.

102130648081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102130648081 is a deficient number, since it is larger than the sum of its proper divisors (25201069103).

102130648081 is a wasteful number, since it uses less digits than its factorization.

102130648081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326372071.

The product of its (nonzero) digits is 9216, while the sum is 34.

Adding to 102130648081 its reverse (180846031201), we get a palindrome (282976679282).

The spelling of 102130648081 in words is "one hundred two billion, one hundred thirty million, six hundred forty-eight thousand, eighty-one".

Divisors: 1 7 11 77 1326372053 9284604371 14590092583 102130648081