Search a number
-
+
54381180 = 22357253349
BaseRepresentation
bin1100111101110…
…0101001111100
310210022211221210
43033130221330
5102410144210
65221324420
71230142500
oct317345174
9123284853
1054381180
1128773427
1216266710
13b360619
147318300
154b92e20
hex33dca7c

54381180 has 144 divisors (see below), whose sum is σ = 180986400. Its totient is φ = 12160512.

The previous prime is 54381169. The next prime is 54381193. The reversal of 54381180 is 8118345.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 155646 + ... + 155994.

It is an arithmetic number, because the mean of its divisors is an integer number (1256850).

Almost surely, 254381180 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 54381180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90493200).

54381180 is an abundant number, since it is smaller than the sum of its proper divisors (126605220).

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

54381180 is a wasteful number, since it uses less digits than its factorization.

54381180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 54381180 is about 7374.3596332156. The cubic root of 54381180 is about 378.8635947654.

The spelling of 54381180 in words is "fifty-four million, three hundred eighty-one thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 53 60 70 84 98 105 106 140 147 159 196 210 212 245 265 294 318 349 371 420 490 530 588 636 698 735 742 795 980 1047 1060 1113 1396 1470 1484 1590 1745 1855 2094 2226 2443 2597 2940 3180 3490 3710 4188 4452 4886 5194 5235 5565 6980 7329 7420 7791 9772 10388 10470 11130 12215 12985 14658 15582 17101 18497 20940 22260 24430 25970 29316 31164 34202 36645 36994 38955 48860 51303 51940 55491 68404 73290 73988 77910 85505 92485 102606 110982 129479 146580 155820 171010 184970 205212 221964 256515 258958 277455 342020 369940 388437 513030 517916 554910 647395 776874 906353 1026060 1109820 1294790 1553748 1812706 1942185 2589580 2719059 3625412 3884370 4531765 5438118 7768740 9063530 10876236 13595295 18127060 27190590 54381180