[go: up one dir, main page]

Search a number
-
+
51030675 = 33521923173
BaseRepresentation
bin1100001010101…
…0101010010011
310120000121221000
43002222222103
5101030440200
65021433043
71156516323
oct302525223
9116017830
1051030675
1126895113
121510b783
13a759587
146ac5283
154730300
hex30aaa93

51030675 has 96 divisors (see below), whose sum is σ = 103564800. Its totient is φ = 24520320.

The previous prime is 51030671. The next prime is 51030737. The reversal of 51030675 is 57603015.

It is not a de Polignac number, because 51030675 - 22 = 51030671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (51030671) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 294889 + ... + 295061.

It is an arithmetic number, because the mean of its divisors is an integer number (1078800).

Almost surely, 251030675 is an apocalyptic number.

51030675 is an abundant number, since it is smaller than the sum of its proper divisors (52534125).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51030675 is a wasteful number, since it uses less digits than its factorization.

51030675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 51030675 is about 7143.5757852773. The cubic root of 51030675 is about 370.9173124062.

The spelling of 51030675 in words is "fifty-one million, thirty thousand, six hundred seventy-five".

Divisors: 1 3 5 9 15 19 23 25 27 45 57 69 75 95 115 135 171 173 207 225 285 345 437 475 513 519 575 621 675 855 865 1035 1311 1425 1557 1725 2185 2565 2595 3105 3287 3933 3979 4275 4325 4671 5175 6555 7785 9861 10925 11799 11937 12825 12975 15525 16435 19665 19895 23355 29583 32775 35811 38925 49305 58995 59685 75601 82175 88749 98325 99475 107433 116775 147915 179055 226803 246525 294975 298425 378005 443745 537165 680409 739575 895275 1134015 1890025 2041227 2218725 2685825 3402045 5670075 10206135 17010225 51030675