Base | Representation |
---|---|
bin | 11100011111011… |
… | …000101100001000 |
3 | 1020022102101112000 |
4 | 130133120230020 |
5 | 1434331132030 |
6 | 115232551000 |
7 | 14562562542 |
oct | 3437305410 |
9 | 1208371460 |
10 | 477989640 |
11 | 2258a3767 |
12 | 1140b2460 |
13 | 7804990b |
14 | 476a6692 |
15 | 2be6b860 |
hex | 1c7d8b08 |
477989640 has 128 divisors (see below), whose sum is σ = 1604016000. Its totient is φ = 126607104.
The previous prime is 477989627. The next prime is 477989641. The reversal of 477989640 is 46989774.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (477989641) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168151 + ... + 170969.
It is an arithmetic number, because the mean of its divisors is an integer number (12531375).
Almost surely, 2477989640 is an apocalyptic number.
477989640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 477989640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802008000).
477989640 is an abundant number, since it is smaller than the sum of its proper divisors (1126026360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
477989640 is a wasteful number, since it uses less digits than its factorization.
477989640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2996 (or 2986 counting only the distinct ones).
The product of its (nonzero) digits is 3048192, while the sum is 54.
The square root of 477989640 is about 21862.9741801064. The cubic root of 477989640 is about 781.8789023263.
The spelling of 477989640 in words is "four hundred seventy-seven million, nine hundred eighty-nine thousand, six hundred forty".
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