Base | Representation |
---|---|
bin | 1011010110111… |
… | …1010100101110 |
3 | 10022122110101220 |
4 | 2311233110232 |
5 | 44144020102 |
6 | 4421044210 |
7 | 1115643450 |
oct | 265572456 |
9 | 108573356 |
10 | 47641902 |
11 | 24990080 |
12 | 13b56666 |
13 | 9b40c99 |
14 | 64822d0 |
15 | 42b11bc |
hex | 2d6f52e |
47641902 has 64 divisors (see below), whose sum is σ = 120089088. Its totient is φ = 12240000.
The previous prime is 47641897. The next prime is 47641921. The reversal of 47641902 is 20914674.
It is a happy number.
It is a super-3 number, since 3×476419023 (a number of 24 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46152 + ... + 47172.
It is an arithmetic number, because the mean of its divisors is an integer number (1876392).
Almost surely, 247641902 is an apocalyptic number.
47641902 is a gapful number since it is divisible by the number (42) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 47641902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60044544).
47641902 is an abundant number, since it is smaller than the sum of its proper divisors (72447186).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47641902 is a wasteful number, since it uses less digits than its factorization.
47641902 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1145.
The product of its (nonzero) digits is 12096, while the sum is 33.
The square root of 47641902 is about 6902.3113520038. The cubic root of 47641902 is about 362.5181016724.
It can be divided in two parts, 4764 and 1902, that added together give a palindrome (6666).
The spelling of 47641902 in words is "forty-seven million, six hundred forty-one thousand, nine hundred two".
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