Base | Representation |
---|---|
bin | 1000111000010… |
… | …01100010001100 |
3 | 12012011101020220 |
4 | 10130021202030 |
5 | 123032103243 |
6 | 11220311340 |
7 | 1563065013 |
oct | 434114214 |
9 | 165141226 |
10 | 74487948 |
11 | 39056997 |
12 | 20b42550 |
13 | 12580512 |
14 | 9c6da7a |
15 | 6815783 |
hex | 470988c |
74487948 has 24 divisors (see below), whose sum is σ = 184029552. Its totient is φ = 23368704.
The previous prime is 74487937. The next prime is 74487953. The reversal of 74487948 is 84978447.
It is a Harshad number since it is a multiple of its sum of digits (51).
It is a self number, because there is not a number n which added to its sum of digits gives 74487948.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182365 + ... + 182772.
It is an arithmetic number, because the mean of its divisors is an integer number (7667898).
Almost surely, 274487948 is an apocalyptic number.
It is an amenable number.
74487948 is an abundant number, since it is smaller than the sum of its proper divisors (109541604).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
74487948 is a wasteful number, since it uses less digits than its factorization.
74487948 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 365161 (or 365159 counting only the distinct ones).
The product of its digits is 1806336, while the sum is 51.
The square root of 74487948 is about 8630.6400689636. The cubic root of 74487948 is about 420.7544037662.
The spelling of 74487948 in words is "seventy-four million, four hundred eighty-seven thousand, nine hundred forty-eight".
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