| Base | Representation |
|---|---|
| bin | 1100010010111… |
| … | …1011010101000 |
| 3 | 10121001020211110 |
| 4 | 3010233122220 |
| 5 | 101200340230 |
| 6 | 5041230320 |
| 7 | 1164242541 |
| oct | 304573250 |
| 9 | 117036743 |
| 10 | 51574440 |
| 11 | 27126705 |
| 12 | 153323a0 |
| 13 | a8b9c28 |
| 14 | 6bc74c8 |
| 15 | 47db4b0 |
| hex | 312f6a8 |
51574440 has 64 divisors (see below), whose sum is σ = 156182400. Its totient is φ = 13623552.
The previous prime is 51574429. The next prime is 51574451. The reversal of 51574440 is 4447515.
51574440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (51574429) and next prime (51574451).
It is a super-2 number, since 2×515744402 = 5319845722627200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 51574398 and 51574407.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11109 + ... + 15051.
It is an arithmetic number, because the mean of its divisors is an integer number (2440350).
Almost surely, 251574440 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 51574440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78091200).
51574440 is an abundant number, since it is smaller than the sum of its proper divisors (104607960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51574440 is a wasteful number, since it uses less digits than its factorization.
51574440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4066 (or 4062 counting only the distinct ones).
The product of its (nonzero) digits is 11200, while the sum is 30.
The square root of 51574440 is about 7181.5346549327. The cubic root of 51574440 is about 372.2301154568.
The spelling of 51574440 in words is "fifty-one million, five hundred seventy-four thousand, four hundred forty".
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