Base | Representation |
---|---|
bin | 100110011111… |
… | …0000010101000 |
3 | 1101222002201200 |
4 | 1030332002220 |
5 | 20131131224 |
6 | 2000244200 |
7 | 333334155 |
oct | 114760250 |
9 | 41862650 |
10 | 20177064 |
11 | 10431366 |
12 | 6910660 |
13 | 4245bbb |
14 | 297322c |
15 | 1b885c9 |
hex | 133e0a8 |
20177064 has 48 divisors (see below), whose sum is σ = 55429920. Its totient is φ = 6629280.
The previous prime is 20177057. The next prime is 20177071. The reversal of 20177064 is 46077102.
It is an interprime number because it is at equal distance from previous prime (20177057) and next prime (20177071).
It is a super-2 number, since 2×201770642 = 814227823320192, which contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3139 + ... + 7085.
It is an arithmetic number, because the mean of its divisors is an integer number (1154790).
Almost surely, 220177064 is an apocalyptic number.
20177064 is a gapful number since it is divisible by the number (24) 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 20177064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27714960).
20177064 is an abundant number, since it is smaller than the sum of its proper divisors (35252856).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20177064 is a wasteful number, since it uses less digits than its factorization.
20177064 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4030 (or 4023 counting only the distinct ones).
The product of its (nonzero) digits is 2352, while the sum is 27.
The square root of 20177064 is about 4491.8886896271. Note that the first 3 decimals coincide. The cubic root of 20177064 is about 272.2404520224.
The spelling of 20177064 in words is "twenty million, one hundred seventy-seven thousand, sixty-four".
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