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361764 = 223213773
BaseRepresentation
bin1011000010100100100
3200101020200
41120110210
543034024
611430500
73034464
oct1302444
9611220
10361764
11227887
12155430
13c8880
1495ba4
15722c9
hex58524

361764 has 36 divisors (see below), whose sum is σ = 986076. Its totient is φ = 111168.

The previous prime is 361763. The next prime is 361769. The reversal of 361764 is 467163.

361764 = T91 + T92 + ... + T142.

It can be written as a sum of positive squares in 2 ways, for example, as 36864 + 324900 = 192^2 + 570^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361764.

It is not an unprimeable number, because it can be changed into a prime (361763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82 + ... + 854.

It is an arithmetic number, because the mean of its divisors is an integer number (27391).

2361764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 361764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493038).

361764 is an abundant number, since it is smaller than the sum of its proper divisors (624312).

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

361764 is a wasteful number, since it uses less digits than its factorization.

361764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 791 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 361764 is about 601.4682036484. The cubic root of 361764 is about 71.2538686727.

It can be divided in two parts, 36 and 1764, that multiplied together give a square (63504 = 2522).

The spelling of 361764 in words is "three hundred sixty-one thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 773 1546 2319 3092 4638 6957 9276 10049 13914 20098 27828 30147 40196 60294 90441 120588 180882 361764