Base | Representation |
---|---|
bin | 10010110110100001… |
… | …11100001011001111 |
3 | 222010100122020212210 |
4 | 21123100330023033 |
5 | 131212000231111 |
6 | 4352150201503 |
7 | 505544643045 |
oct | 113320741317 |
9 | 28110566783 |
10 | 10121102031 |
11 | 4324109837 |
12 | 1b65653293 |
13 | c53b0bb91 |
14 | 6c0288395 |
15 | 3e38300a6 |
hex | 25b43c2cf |
10121102031 has 16 divisors (see below), whose sum is σ = 14430093408. Its totient is φ = 6287616000.
The previous prime is 10121102021. The next prime is 10121102041. The reversal of 10121102031 is 13020112101.
It is an interprime number because it is at equal distance from previous prime (10121102021) and next prime (10121102041).
It is not a de Polignac number, because 10121102031 - 213 = 10121093839 is a prime.
It is a super-2 number, since 2×101211020312 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 10121101998 and 10121102016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10121102021) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 977290 + ... + 987591.
It is an arithmetic number, because the mean of its divisors is an integer number (901880838).
Almost surely, 210121102031 is an apocalyptic number.
10121102031 is a deficient number, since it is larger than the sum of its proper divisors (4308991377).
10121102031 is a wasteful number, since it uses less digits than its factorization.
10121102031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1965002.
The product of its (nonzero) digits is 12, while the sum is 12.
Adding to 10121102031 its reverse (13020112101), we get a palindrome (23141214132).
The spelling of 10121102031 in words is "ten billion, one hundred twenty-one million, one hundred two thousand, thirty-one".
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