Base | Representation |
---|---|
bin | 11100011001000… |
… | …00001010010000 |
3 | 121121010201000110 |
4 | 32030200022100 |
5 | 441432032410 |
6 | 35344321320 |
7 | 5621212410 |
oct | 1614401220 |
9 | 547121013 |
10 | 238158480 |
11 | 112485a9a |
12 | 67913240 |
13 | 3a4578a1 |
14 | 238b6640 |
15 | 15d95720 |
hex | e320290 |
238158480 has 80 divisors (see below), whose sum is σ = 843767424. Its totient is φ = 54435840.
The previous prime is 238158449. The next prime is 238158497. The reversal of 238158480 is 84851832.
It is a tau number, because it is divible by the number of its divisors (80).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69201 + ... + 72560.
Almost surely, 2238158480 is an apocalyptic number.
238158480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
238158480 is an abundant number, since it is smaller than the sum of its proper divisors (605608944).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
238158480 is a wasteful number, since it uses less digits than its factorization.
238158480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 141784 (or 141778 counting only the distinct ones).
The product of its (nonzero) digits is 61440, while the sum is 39.
The square root of 238158480 is about 15432.3841320776. The cubic root of 238158480 is about 619.8529654800.
The spelling of 238158480 in words is "two hundred thirty-eight million, one hundred fifty-eight thousand, four hundred eighty".
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