Search a number
-
+
252270180 = 223354631009
BaseRepresentation
bin11110000100101…
…01011001100100
3122120200122122000
433002111121210
51004040121210
641011005300
76152155401
oct1702253144
9576618560
10252270180
1111a444358
1270599830
1340358ac6
142570b2a8
1517231ac0
hexf095664

252270180 has 96 divisors (see below), whose sum is σ = 787315200. Its totient is φ = 67060224.

The previous prime is 252270173. The next prime is 252270199. The reversal of 252270180 is 81072252.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 31 ways as a sum of consecutive naturals, for example, 249516 + ... + 250524.

It is an arithmetic number, because the mean of its divisors is an integer number (8201200).

Almost surely, 2252270180 is an apocalyptic number.

252270180 is a gapful number since it is divisible by the number (20) 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 252270180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393657600).

252270180 is an abundant number, since it is smaller than the sum of its proper divisors (535045020).

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

252270180 is a wasteful number, since it uses less digits than its factorization.

252270180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 252270180 is about 15883.0154567702. The cubic root of 252270180 is about 631.8616138012.

The spelling of 252270180 in words is "two hundred fifty-two million, two hundred seventy thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 463 540 926 1009 1389 1852 2018 2315 2778 3027 4036 4167 4630 5045 5556 6054 6945 8334 9081 9260 10090 12108 12501 13890 15135 16668 18162 20180 20835 25002 27243 27780 30270 36324 41670 45405 50004 54486 60540 62505 83340 90810 108972 125010 136215 181620 250020 272430 467167 544860 934334 1401501 1868668 2335835 2803002 4204503 4671670 5606004 7007505 8409006 9343340 12613509 14015010 16818012 21022515 25227018 28030020 42045030 50454036 63067545 84090060 126135090 252270180