Base | Representation |
---|---|
bin | 100100000000… |
… | …0000110000000 |
3 | 1022111221021220 |
4 | 1020000012000 |
5 | 14312443002 |
6 | 1512315040 |
7 | 316301301 |
oct | 110000600 |
9 | 38457256 |
10 | 18874752 |
11 | a721976 |
12 | 63a2a80 |
13 | 3bab1c0 |
14 | 27147a8 |
15 | 19cc7bc |
hex | 1200180 |
18874752 has 128 divisors (see below), whose sum is σ = 57120000. Its totient is φ = 5474304.
The previous prime is 18874747. The next prime is 18874769. The reversal of 18874752 is 25747881.
It is a tau number, because it is divible by the number of its divisors (128).
It is a congruent number.
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, 94749 + ... + 94947.
It is an arithmetic number, because the mean of its divisors is an integer number (446250).
Almost surely, 218874752 is an apocalyptic number.
18874752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18874752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28560000).
18874752 is an abundant number, since it is smaller than the sum of its proper divisors (38245248).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18874752 is a wasteful number, since it uses less digits than its factorization.
18874752 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 248 (or 236 counting only the distinct ones).
The product of its digits is 125440, while the sum is 42.
The square root of 18874752 is about 4344.5082575592. The cubic root of 18874752 is about 266.2525349667.
The spelling of 18874752 in words is "eighteen million, eight hundred seventy-four thousand, seven hundred fifty-two".
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