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524123420 = 22571834447
BaseRepresentation
bin11111001111010…
…111110100011100
31100112020020011112
4133033113310130
52033133422140
6124001441152
715662655422
oct3717276434
91315206145
10524123420
11249943757
121276401b8
1384780302
144d875112
1531030c65
hex1f3d7d1c

524123420 has 48 divisors (see below), whose sum is σ = 1129863168. Its totient is φ = 204160320.

The previous prime is 524123419. The next prime is 524123473. The reversal of 524123420 is 24321425.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115637 + ... + 120083.

It is an arithmetic number, because the mean of its divisors is an integer number (23538816).

Almost surely, 2524123420 is an apocalyptic number.

It is an amenable number.

524123420 is an abundant number, since it is smaller than the sum of its proper divisors (605739748).

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

524123420 is a wasteful number, since it uses less digits than its factorization.

524123420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4610 (or 4608 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 524123420 is about 22893.7419396655. The cubic root of 524123420 is about 806.2650889951.

Adding to 524123420 its reverse (24321425), we get a palindrome (548444845).

The spelling of 524123420 in words is "five hundred twenty-four million, one hundred twenty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 71 83 142 166 284 332 355 415 710 830 1420 1660 4447 5893 8894 11786 17788 22235 23572 29465 44470 58930 88940 117860 315737 369101 631474 738202 1262948 1476404 1578685 1845505 3157370 3691010 6314740 7382020 26206171 52412342 104824684 131030855 262061710 524123420