Base | Representation |
---|---|
bin | 1100001111111… |
… | …0010110011110 |
3 | 10120200001011010 |
4 | 3003332112132 |
5 | 101122422340 |
6 | 5033040050 |
7 | 1162444611 |
oct | 303762636 |
9 | 116601133 |
10 | 51373470 |
11 | 26aa9715 |
12 | 15256026 |
13 | a849605 |
14 | 6b74178 |
15 | 479bb80 |
hex | 30fe59e |
51373470 has 64 divisors (see below), whose sum is σ = 126904320. Its totient is φ = 13305600.
The previous prime is 51373459. The next prime is 51373477. The reversal of 51373470 is 7437315.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (51373477) 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, 189435 + ... + 189705.
It is an arithmetic number, because the mean of its divisors is an integer number (1982880).
Almost surely, 251373470 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 51373470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63452160).
51373470 is an abundant number, since it is smaller than the sum of its proper divisors (75530850).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51373470 is a wasteful number, since it uses less digits than its factorization.
51373470 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 441.
The product of its (nonzero) digits is 8820, while the sum is 30.
The square root of 51373470 is about 7167.5288628648. The cubic root of 51373470 is about 371.7459966823.
The spelling of 51373470 in words is "fifty-one million, three hundred seventy-three thousand, four hundred seventy".
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