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520670241 = 33713216301
BaseRepresentation
bin11111000010001…
…100110000100001
31100021201210022000
4133002030300201
52031242421431
6123355434213
715621424020
oct3702146041
91307653260
10520670241
112479a5293
12126455969
1383b41600
144d2168b7
1530a9c9e6
hex1f08cc21

520670241 has 48 divisors (see below), whose sum is σ = 954645120. Its totient is φ = 274622400.

The previous prime is 520670233. The next prime is 520670257. The reversal of 520670241 is 142076025.

It is not a de Polignac number, because 520670241 - 23 = 520670233 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520670261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23791 + ... + 40091.

It is an arithmetic number, because the mean of its divisors is an integer number (19888440).

Almost surely, 2520670241 is an apocalyptic number.

It is an amenable number.

520670241 is a deficient number, since it is larger than the sum of its proper divisors (433974879).

520670241 is a wasteful number, since it uses less digits than its factorization.

520670241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16343 (or 16324 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 520670241 is about 22818.1997756177. The cubic root of 520670241 is about 804.4904976485.

It can be divided in two parts, 520 and 670241, that added together give a square (670761 = 8192).

The spelling of 520670241 in words is "five hundred twenty million, six hundred seventy thousand, two hundred forty-one".

Divisors: 1 3 7 9 13 21 27 39 63 91 117 169 189 273 351 507 819 1183 1521 2457 3549 4563 10647 16301 31941 48903 114107 146709 211913 342321 440127 635739 1026963 1483391 1907217 2754869 3080889 4450173 5721651 8264607 13350519 19284083 24793821 40051557 57852249 74381463 173556747 520670241