Base | Representation |
---|---|
bin | 101111100011011100… |
… | …1000101101100010101 |
3 | 100202120222212111022210 |
4 | 1133012321011230111 |
5 | 3133121000231401 |
6 | 114525213344033 |
7 | 10243441021434 |
oct | 1370671055425 |
9 | 322528774283 |
10 | 102121102101 |
11 | 3a344777547 |
12 | 17960198019 |
13 | 98260a8545 |
14 | 4d2aa4111b |
15 | 29ca56e4d6 |
hex | 17c6e45b15 |
102121102101 has 8 divisors (see below), whose sum is σ = 144170967744. Its totient is φ = 64075985600.
The previous prime is 102121102073. The next prime is 102121102103. The reversal of 102121102101 is 101201121201.
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 102121102101 - 26 = 102121102037 is a prime.
It is a super-2 number, since 2×1021211021012 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102121102103) 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, 1001187225 + ... + 1001187326.
It is an arithmetic number, because the mean of its divisors is an integer number (18021370968).
Almost surely, 2102121102101 is an apocalyptic number.
It is an amenable number.
102121102101 is a deficient number, since it is larger than the sum of its proper divisors (42049865643).
102121102101 is a wasteful number, since it uses less digits than its factorization.
102121102101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2002374571.
The product of its (nonzero) digits is 8, while the sum is 12.
Adding to 102121102101 its reverse (101201121201), we get a palindrome (203322223302).
The spelling of 102121102101 in words is "one hundred two billion, one hundred twenty-one million, one hundred two thousand, one hundred one".
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