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520419471 = 311132959709
BaseRepresentation
bin11111000001001…
…111100010001111
31100021021001022020
4133001033202033
52031211410341
6123350221223
715616330635
oct3701174217
91307231266
10520419471
11247843940
12126354813
1383a84420
144d18d355
1530a4d566
hex1f04f88f

520419471 has 64 divisors (see below), whose sum is σ = 858816000. Its totient is φ = 275950080.

The previous prime is 520419463. The next prime is 520419491. The reversal of 520419471 is 174914025.

It is a happy number.

It is not a de Polignac number, because 520419471 - 23 = 520419463 is a prime.

It is a super-3 number, since 3×5204194713 (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520419461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 733665 + ... + 734373.

It is an arithmetic number, because the mean of its divisors is an integer number (13419000).

Almost surely, 2520419471 is an apocalyptic number.

520419471 is a deficient number, since it is larger than the sum of its proper divisors (338396529).

520419471 is a wasteful number, since it uses less digits than its factorization.

520419471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 520419471 is about 22812.7041579906. The cubic root of 520419471 is about 804.3613215321.

The spelling of 520419471 in words is "five hundred twenty million, four hundred nineteen thousand, four hundred seventy-one".

Divisors: 1 3 11 13 29 33 39 59 87 143 177 319 377 429 649 709 767 957 1131 1711 1947 2127 2301 4147 5133 7799 8437 9217 12441 18821 20561 22243 23397 25311 27651 41831 56463 61683 66729 101387 125493 226171 244673 267293 304161 460141 543803 678513 734019 801879 1213099 1380423 1631409 2940223 3639297 5981833 8820669 13344089 15770287 17945499 40032267 47310861 173473157 520419471