Base | Representation |
---|---|
bin | 1101010011001… |
… | …1100111100010 |
3 | 10212222012221110 |
4 | 3110303213202 |
5 | 103240122304 |
6 | 5311404150 |
7 | 1245113160 |
oct | 324634742 |
9 | 125865843 |
10 | 55785954 |
11 | 295428a4 |
12 | 16823656 |
13 | b732b53 |
14 | 75a2230 |
15 | 4d6e289 |
hex | 35339e2 |
55785954 has 16 divisors (see below), whose sum is σ = 127510848. Its totient is φ = 15938832.
The previous prime is 55785941. The next prime is 55785979. The reversal of 55785954 is 45958755.
It is a happy number.
It is a super-2 number, since 2×557859542 = 6224145327380232, which contains 22 as substring.
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, 664077 + ... + 664160.
It is an arithmetic number, because the mean of its divisors is an integer number (7969428).
Almost surely, 255785954 is an apocalyptic number.
55785954 is an abundant number, since it is smaller than the sum of its proper divisors (71724894).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
55785954 is a wasteful number, since it uses less digits than its factorization.
55785954 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1328249.
The product of its digits is 1260000, while the sum is 48.
The square root of 55785954 is about 7468.9995313964. Note that the first 3 decimals coincide. The cubic root of 55785954 is about 382.0981674370.
The spelling of 55785954 in words is "fifty-five million, seven hundred eighty-five thousand, nine hundred fifty-four".
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