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54641860 = 22572134289
BaseRepresentation
bin1101000001110…
…0010011000100
310210211002112121
43100130103010
5102442014420
65231055324
71232306500
oct320342304
9123732477
1054641860
1128931269
1216371544
13b422180
147385300
154be52aa
hex341c4c4

54641860 has 72 divisors (see below), whose sum is σ = 143783640. Its totient is φ = 17289216.

The previous prime is 54641831. The next prime is 54641903. The reversal of 54641860 is 6814645.

It can be written as a sum of positive squares in 4 ways, for example, as 8156736 + 46485124 = 2856^2 + 6818^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10596 + ... + 14884.

It is an arithmetic number, because the mean of its divisors is an integer number (1996995).

Almost surely, 254641860 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 54641860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71891820).

54641860 is an abundant number, since it is smaller than the sum of its proper divisors (89141780).

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

54641860 is a wasteful number, since it uses less digits than its factorization.

54641860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4325 (or 4316 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 54641860 is about 7392.0132575639. The cubic root of 54641860 is about 379.4679997759.

The spelling of 54641860 in words is "fifty-four million, six hundred forty-one thousand, eight hundred sixty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 49 52 65 70 91 98 130 140 182 196 245 260 364 455 490 637 910 980 1274 1820 2548 3185 4289 6370 8578 12740 17156 21445 30023 42890 55757 60046 85780 111514 120092 150115 210161 223028 278785 300230 390299 420322 557570 600460 780598 840644 1050805 1115140 1561196 1951495 2101610 2732093 3902990 4203220 5464186 7805980 10928372 13660465 27320930 54641860