Base | Representation |
---|---|
bin | 1101101110101… |
… | …10001101110000 |
3 | 22000201100120100 |
4 | 12313112031300 |
5 | 213441002313 |
6 | 15232312400 |
7 | 2565643014 |
oct | 667261560 |
9 | 260640510 |
10 | 115172208 |
11 | 5a014648 |
12 | 326a2700 |
13 | 1ab26648 |
14 | 11420544 |
15 | a1a0173 |
hex | 6dd6370 |
115172208 has 30 divisors (see below), whose sum is σ = 322322624. Its totient is φ = 38390688.
The previous prime is 115172207. The next prime is 115172261. The reversal of 115172208 is 802271511.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (115172207) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399760 + ... + 400047.
Almost surely, 2115172208 is an apocalyptic number.
115172208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
115172208 is an abundant number, since it is smaller than the sum of its proper divisors (207150416).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
115172208 is a wasteful number, since it uses less digits than its factorization.
115172208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 799821 (or 799812 counting only the distinct ones).
The product of its (nonzero) digits is 1120, while the sum is 27.
The square root of 115172208 is about 10731.8315305450. The cubic root of 115172208 is about 486.5370276660.
The spelling of 115172208 in words is "one hundred fifteen million, one hundred seventy-two thousand, two hundred eight".
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