Base | Representation |
---|---|
bin | 101111111111111110… |
… | …1100101001100001001 |
3 | 100212001201112110110021 |
4 | 1133333331211030021 |
5 | 3142101104043001 |
6 | 115204215420441 |
7 | 10306245324214 |
oct | 1377775451411 |
9 | 325051473407 |
10 | 103078581001 |
11 | 3a796198620 |
12 | 17b88984721 |
13 | 99495784c6 |
14 | 4dbbc8077b |
15 | 2a34651ba1 |
hex | 17fff65309 |
103078581001 has 4 divisors (see below), whose sum is σ = 112449361104. Its totient is φ = 93707800900.
The previous prime is 103078580953. The next prime is 103078581013. The reversal of 103078581001 is 100185870301.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-103078581001 is a prime.
It is a super-2 number, since 2×1030785810012 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (103078581301) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4685390035 + ... + 4685390056.
It is an arithmetic number, because the mean of its divisors is an integer number (28112340276).
Almost surely, 2103078581001 is an apocalyptic number.
103078581001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
103078581001 is a deficient number, since it is larger than the sum of its proper divisors (9370780103).
103078581001 is an equidigital number, since it uses as much as digits as its factorization.
103078581001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9370780102.
The product of its (nonzero) digits is 6720, while the sum is 34.
The spelling of 103078581001 in words is "one hundred three billion, seventy-eight million, five hundred eighty-one thousand, one".
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