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54391470 = 23572163227
BaseRepresentation
bin1100111101111…
…1001010101110
310210100101001220
43033133022232
5102411011340
65221444210
71230214500
oct317371256
9123311056
1054391470
1128780131
1216270666
13b365203
14731bd70
154b95ed0
hex33df2ae

54391470 has 96 divisors (see below), whose sum is σ = 153456768. Its totient is φ = 12301632.

The previous prime is 54391459. The next prime is 54391487. The reversal of 54391470 is 7419345.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239497 + ... + 239723.

It is an arithmetic number, because the mean of its divisors is an integer number (1598508).

Almost surely, 254391470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54391470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76728384).

54391470 is an abundant number, since it is smaller than the sum of its proper divisors (99065298).

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

54391470 is a wasteful number, since it uses less digits than its factorization.

54391470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 54391470 is about 7375.0572879131. The cubic root of 54391470 is about 378.8874894321.

The spelling of 54391470 in words is "fifty-four million, three hundred ninety-one thousand, four hundred seventy".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 49 70 98 105 147 163 210 227 245 294 326 454 489 490 681 735 815 978 1135 1141 1362 1470 1589 1630 2270 2282 2445 3178 3405 3423 4767 4890 5705 6810 6846 7945 7987 9534 11123 11410 15890 15974 17115 22246 23835 23961 33369 34230 37001 39935 47670 47922 55615 66738 74002 79870 111003 111230 119805 166845 185005 222006 239610 259007 333690 370010 518014 555015 777021 1110030 1295035 1554042 1813049 2590070 3626098 3885105 5439147 7770210 9065245 10878294 18130490 27195735 54391470