Base | Representation |
---|---|
bin | 1000010101100… |
… | …00110100000000 |
3 | 11212120211020220 |
4 | 10022300310000 |
5 | 120400231430 |
6 | 10534503040 |
7 | 1506253152 |
oct | 412606400 |
9 | 155524226 |
10 | 69930240 |
11 | 36523696 |
12 | 1b504a80 |
13 | 11645b53 |
14 | 9404ad2 |
15 | 6215110 |
hex | 42b0d00 |
69930240 has 72 divisors (see below), whose sum is σ = 223351968. Its totient is φ = 18647040.
The previous prime is 69930229. The next prime is 69930251. The reversal of 69930240 is 4203996.
It is an interprime number because it is at equal distance from previous prime (69930229) and next prime (69930251).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5266 + ... + 12945.
Almost surely, 269930240 is an apocalyptic number.
69930240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
69930240 is an abundant number, since it is smaller than the sum of its proper divisors (153421728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69930240 is a wasteful number, since it uses less digits than its factorization.
69930240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18235 (or 18221 counting only the distinct ones).
The product of its (nonzero) digits is 11664, while the sum is 33.
The square root of 69930240 is about 8362.4302687676. The cubic root of 69930240 is about 411.9915793044.
The spelling of 69930240 in words is "sixty-nine million, nine hundred thirty thousand, two hundred forty".
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