Base | Representation |
---|---|
bin | 111101111101… |
… | …100100100100 |
3 | 1010120020011212 |
4 | 331331210210 |
5 | 13124233410 |
6 | 1340050552 |
7 | 255030425 |
oct | 75754444 |
9 | 33506155 |
10 | 16242980 |
11 | 9194656 |
12 | 5533a58 |
13 | 3499340 |
14 | 222b64c |
15 | 165cb05 |
hex | f7d924 |
16242980 has 24 divisors (see below), whose sum is σ = 36734712. Its totient is φ = 5997312.
The previous prime is 16242971. The next prime is 16242983. The reversal of 16242980 is 8924261.
It can be written as a sum of positive squares in 4 ways, for example, as 306916 + 15936064 = 554^2 + 3992^2 .
It is not an unprimeable number, because it can be changed into a prime (16242983) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30977 + ... + 31496.
It is an arithmetic number, because the mean of its divisors is an integer number (1530613).
Almost surely, 216242980 is an apocalyptic number.
16242980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
16242980 is an abundant number, since it is smaller than the sum of its proper divisors (20491732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16242980 is a wasteful number, since it uses less digits than its factorization.
16242980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62495 (or 62493 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 32.
The square root of 16242980 is about 4030.2580562540. The cubic root of 16242980 is about 253.2533719630.
The spelling of 16242980 in words is "sixteen million, two hundred forty-two thousand, nine hundred eighty".
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