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285450542 = 21331794483
BaseRepresentation
bin10001000000111…
…010000100101110
3201220010101112022
4101000322010232
51041033404132
644154110142
710034201216
oct2100720456
9656111468
10285450542
11137147243
127b71b352
13471a5560
1429ca7246
151a0d7e12
hex1103a12e

285450542 has 32 divisors (see below), whose sum is σ = 482119680. Its totient is φ = 125854560.

The previous prime is 285450541. The next prime is 285450563. The reversal of 285450542 is 245054582.

285450542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285450541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61433 + ... + 65915.

It is an arithmetic number, because the mean of its divisors is an integer number (15066240).

Almost surely, 2285450542 is an apocalyptic number.

285450542 is a deficient number, since it is larger than the sum of its proper divisors (196669138).

285450542 is a wasteful number, since it uses less digits than its factorization.

285450542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608.

The product of its (nonzero) digits is 64000, while the sum is 35.

The square root of 285450542 is about 16895.2816490285. The cubic root of 285450542 is about 658.4310313516.

The spelling of 285450542 in words is "two hundred eighty-five million, four hundred fifty thousand, five hundred forty-two".

Divisors: 1 2 13 26 31 62 79 158 403 806 1027 2054 2449 4483 4898 8966 31837 58279 63674 116558 138973 277946 354157 708314 1806649 3613298 4604041 9208082 10978867 21957734 142725271 285450542