Base | Representation |
---|---|
bin | 10010110110101000… |
… | …11110111110001011 |
3 | 222010102101110011120 |
4 | 21123110132332023 |
5 | 131212214442422 |
6 | 4352222130323 |
7 | 505555562265 |
oct | 113324367613 |
9 | 28112343146 |
10 | 10122030987 |
11 | 4324693772 |
12 | 1b65a209a3 |
13 | c54075963 |
14 | 6c044ab35 |
15 | 3e396545c |
hex | 25b51ef8b |
10122030987 has 12 divisors (see below), whose sum is σ = 14243745960. Its totient is φ = 6392860992.
The previous prime is 10122030983. The next prime is 10122031019. The reversal of 10122030987 is 78903022101.
It is not a de Polignac number, because 10122030987 - 22 = 10122030983 is a prime.
It is a super-2 number, since 2×101220309872 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (10122030983) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4672062 + ... + 4674227.
It is an arithmetic number, because the mean of its divisors is an integer number (1186978830).
Almost surely, 210122030987 is an apocalyptic number.
10122030987 is a deficient number, since it is larger than the sum of its proper divisors (4121714973).
10122030987 is an equidigital number, since it uses as much as digits as its factorization.
10122030987 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9346330 (or 9346311 counting only the distinct ones).
The product of its (nonzero) digits is 6048, while the sum is 33.
The spelling of 10122030987 in words is "ten billion, one hundred twenty-two million, thirty thousand, nine hundred eighty-seven".
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