Search a number
-
+
52051965 = 357367151
BaseRepresentation
bin1100011010001…
…1111111111101
310121221111212120
43012203333331
5101311130330
65055353153
71201302000
oct306437775
9117844776
1052051965
1127422459
12155227b9
13aa263a4
146cad537
154882c10
hex31a3ffd

52051965 has 64 divisors (see below), whose sum is σ = 99225600. Its totient is φ = 23284800.

The previous prime is 52051927. The next prime is 52051997. The reversal of 52051965 is 56915025.

It is not a de Polignac number, because 52051965 - 212 = 52047869 is a prime.

It is a super-2 number, since 2×520519652 = 5418814120722450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 344640 + ... + 344790.

It is an arithmetic number, because the mean of its divisors is an integer number (1550400).

Almost surely, 252051965 is an apocalyptic number.

It is an amenable number.

52051965 is a deficient number, since it is larger than the sum of its proper divisors (47173635).

52051965 is a wasteful number, since it uses less digits than its factorization.

52051965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 52051965 is about 7214.7047756648. The cubic root of 52051965 is about 373.3754075845.

The spelling of 52051965 in words is "fifty-two million, fifty-one thousand, nine hundred sixty-five".

Divisors: 1 3 5 7 15 21 35 49 67 105 147 151 201 245 335 343 453 469 735 755 1005 1029 1057 1407 1715 2265 2345 3171 3283 5145 5285 7035 7399 9849 10117 15855 16415 22197 22981 30351 36995 49245 50585 51793 68943 70819 110985 114905 151755 155379 212457 258965 344715 354095 495733 776895 1062285 1487199 2478665 3470131 7435995 10410393 17350655 52051965