Search a number
-
+
180874368 = 2732197797
BaseRepresentation
bin10101100011111…
…10110010000000
3110121100100222200
422301332302000
5332300434433
625540433200
74324256343
oct1261766200
9417310880
10180874368
119310a654
12506a8800
132b61bb6c
141a04445a
1510d2c613
hexac7ec80

180874368 has 96 divisors (see below), whose sum is σ = 523783260. Its totient is φ = 59910144.

The previous prime is 180874327. The next prime is 180874381. The reversal of 180874368 is 863478081.

It can be written as a sum of positive squares in 2 ways, for example, as 163635264 + 17239104 = 12792^2 + 4152^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226546 + ... + 227342.

Almost surely, 2180874368 is an apocalyptic number.

180874368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180874368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261891630).

180874368 is an abundant number, since it is smaller than the sum of its proper divisors (342908892).

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

180874368 is a wasteful number, since it uses less digits than its factorization.

180874368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 180874368 is about 13448.9541600825. The cubic root of 180874368 is about 565.5343763036.

It can be divided in two parts, 1808 and 74368, that added together give a square (76176 = 2762).

The spelling of 180874368 in words is "one hundred eighty million, eight hundred seventy-four thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 197 288 384 394 576 591 788 797 1152 1182 1576 1594 1773 2364 2391 3152 3188 3546 4728 4782 6304 6376 7092 7173 9456 9564 12608 12752 14184 14346 18912 19128 25216 25504 28368 28692 37824 38256 51008 56736 57384 75648 76512 102016 113472 114768 153024 157009 226944 229536 306048 314018 459072 471027 628036 918144 942054 1256072 1413081 1884108 2512144 2826162 3768216 5024288 5652324 7536432 10048576 11304648 15072864 20097152 22609296 30145728 45218592 60291456 90437184 180874368