Base | Representation |
---|---|
bin | 11110010011111011110000 |
3 | 112221200211010 |
4 | 132103323300 |
5 | 4013232333 |
6 | 442150520 |
7 | 124353042 |
oct | 36237360 |
9 | 15850733 |
10 | 7945968 |
11 | 4537a18 |
12 | 27b2440 |
13 | 1852974 |
14 | 10aba92 |
15 | a6e563 |
hex | 793ef0 |
7945968 has 20 divisors (see below), whose sum is σ = 20527208. Its totient is φ = 2648640.
The previous prime is 7945967. The next prime is 7945969. The reversal of 7945968 is 8695497.
It is an interprime number because it is at equal distance from previous prime (7945967) and next prime (7945969).
It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 165541 = 7945968 / (7 + 9 + 4 + 5 + 9 + 6 + 8).
It is an Ulam number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7945963) 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, 82723 + ... + 82818.
Almost surely, 27945968 is an apocalyptic number.
It is an amenable number.
7945968 is an abundant number, since it is smaller than the sum of its proper divisors (12581240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7945968 is a wasteful number, since it uses less digits than its factorization.
7945968 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 165552 (or 165546 counting only the distinct ones).
The product of its digits is 544320, while the sum is 48.
The square root of 7945968 is about 2818.8593437772. The cubic root of 7945968 is about 199.5487158121.
The spelling of 7945968 in words is "seven million, nine hundred forty-five thousand, nine hundred sixty-eight".
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