Base | Representation |
---|---|
bin | 1000000111100… |
… | …10111110000111 |
3 | 11202011001020000 |
4 | 10003302332013 |
5 | 114413312241 |
6 | 10431412343 |
7 | 1454606100 |
oct | 403627607 |
9 | 152131200 |
10 | 68104071 |
11 | 35496662 |
12 | 1a9840b3 |
13 | 11156889 |
14 | 908b3a7 |
15 | 5ea3eb6 |
hex | 40f2f87 |
68104071 has 30 divisors (see below), whose sum is σ = 118352520. Its totient is φ = 38914344.
The previous prime is 68104063. The next prime is 68104079. The reversal of 68104071 is 17040186.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (68104063) and next prime (68104079).
It is not a de Polignac number, because 68104071 - 23 = 68104063 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a plaindrome in base 13.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68104079) by changing a digit.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4611 + ... + 12548.
It is an arithmetic number, because the mean of its divisors is an integer number (3945084).
Almost surely, 268104071 is an apocalyptic number.
68104071 is a deficient number, since it is larger than the sum of its proper divisors (50248449).
68104071 is a wasteful number, since it uses less digits than its factorization.
68104071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17185 (or 17169 counting only the distinct ones).
The product of its (nonzero) digits is 1344, while the sum is 27.
The square root of 68104071 is about 8252.5190699568. The cubic root of 68104071 is about 408.3736304902.
The spelling of 68104071 in words is "sixty-eight million, one hundred four thousand, seventy-one".
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