Base | Representation |
---|---|
bin | 1011011011011… |
… | …1100110010110 |
3 | 10100012111111100 |
4 | 2312313212112 |
5 | 44233003232 |
6 | 4431250530 |
7 | 1121315523 |
oct | 266674626 |
9 | 110174440 |
10 | 47937942 |
11 | 25072538 |
12 | 14079a46 |
13 | 9c15960 |
14 | 651c14a |
15 | 431dc7c |
hex | 2db7996 |
47937942 has 48 divisors (see below), whose sum is σ = 112366800. Its totient is φ = 14682816.
The previous prime is 47937941. The next prime is 47937949. The reversal of 47937942 is 24973974.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47937941) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81373 + ... + 81959.
It is an arithmetic number, because the mean of its divisors is an integer number (2340975).
Almost surely, 247937942 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 47937942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56183400).
47937942 is an abundant number, since it is smaller than the sum of its proper divisors (64428858).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47937942 is a wasteful number, since it uses less digits than its factorization.
47937942 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 957 (or 954 counting only the distinct ones).
The product of its digits is 381024, while the sum is 45.
The square root of 47937942 is about 6923.7231313795. The cubic root of 47937942 is about 363.2674303685.
The spelling of 47937942 in words is "forty-seven million, nine hundred thirty-seven thousand, nine hundred forty-two".
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