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10102102121 = 29477411667
BaseRepresentation
bin10010110100010000…
…11101100001101001
3222002000212221220102
421122020131201221
5131142114231441
64350231035145
7505224310526
oct113210354151
928060787812
1010102102121
114314411931
121b5b20bab5
13c4cbb8a27
146bb94014d
153e1d2a69b
hex25a21d869

10102102121 has 8 divisors (see below), whose sum is σ = 10672801920. Its totient is φ = 9546225808.

The previous prime is 10102102099. The next prime is 10102102123. The reversal of 10102102121 is 12120120101.

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 10102102121 - 222 = 10097907817 is a prime.

It is a super-3 number, since 3×101021021213 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10102102123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3704471 + ... + 3707196.

It is an arithmetic number, because the mean of its divisors is an integer number (1334100240).

Almost surely, 210102102121 is an apocalyptic number.

It is an amenable number.

10102102121 is a deficient number, since it is larger than the sum of its proper divisors (570699799).

10102102121 is an equidigital number, since it uses as much as digits as its factorization.

10102102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411743.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10102102121 its reverse (12120120101), we get a palindrome (22222222222).

The spelling of 10102102121 in words is "ten billion, one hundred two million, one hundred two thousand, one hundred twenty-one".

Divisors: 1 29 47 1363 7411667 214938343 348348349 10102102121