Base | Representation |
---|---|
bin | 1010000100001… |
… | …0000111111000 |
3 | 2221102200120001 |
4 | 2201002013320 |
5 | 41301321010 |
6 | 4104442344 |
7 | 1021545352 |
oct | 241020770 |
9 | 87380501 |
10 | 42213880 |
11 | 21912a05 |
12 | 121793b4 |
13 | 8990437 |
14 | 586c0d2 |
15 | 3a8cc3a |
hex | 28421f8 |
42213880 has 16 divisors (see below), whose sum is σ = 94981320. Its totient is φ = 16885536.
The previous prime is 42213869. The next prime is 42213889. The reversal of 42213880 is 8831224.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (42213889) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527634 + ... + 527713.
Almost surely, 242213880 is an apocalyptic number.
42213880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
42213880 is an abundant number, since it is smaller than the sum of its proper divisors (52767440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42213880 is a wasteful number, since it uses less digits than its factorization.
42213880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1055358 (or 1055354 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 28.
The square root of 42213880 is about 6497.2209443731. The cubic root of 42213880 is about 348.1917074694.
The spelling of 42213880 in words is "forty-two million, two hundred thirteen thousand, eight hundred eighty".
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