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54540420 = 223511174861
BaseRepresentation
bin1101000000001…
…1100010000100
310210121221101120
43100003202010
5102430243140
65224553540
71231404654
oct320034204
9123557346
1054540420
1128872030
12163228b0
13b3b7c4c
14735a364
154bc51d0
hex3403884

54540420 has 96 divisors (see below), whose sum is σ = 176432256. Its totient is φ = 12441600.

The previous prime is 54540413. The next prime is 54540427. The reversal of 54540420 is 2404545.

It is an interprime number because it is at equal distance from previous prime (54540413) and next prime (54540427).

It is not an unprimeable number, because it can be changed into a prime (54540427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8790 + ... + 13650.

It is an arithmetic number, because the mean of its divisors is an integer number (1837836).

Almost surely, 254540420 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 54540420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88216128).

54540420 is an abundant number, since it is smaller than the sum of its proper divisors (121891836).

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

54540420 is a wasteful number, since it uses less digits than its factorization.

54540420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901 (or 4899 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 54540420 is about 7385.1486105562. The cubic root of 54540420 is about 379.2330329161.

Adding to 54540420 its reverse (2404545), we get a palindrome (56944965).

The spelling of 54540420 in words is "fifty-four million, five hundred forty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 17 20 22 30 33 34 44 51 55 60 66 68 85 102 110 132 165 170 187 204 220 255 330 340 374 510 561 660 748 935 1020 1122 1870 2244 2805 3740 4861 5610 9722 11220 14583 19444 24305 29166 48610 53471 58332 72915 82637 97220 106942 145830 160413 165274 213884 247911 267355 291660 320826 330548 413185 495822 534710 641652 802065 826370 909007 991644 1069420 1239555 1604130 1652740 1818014 2479110 2727021 3208260 3636028 4545035 4958220 5454042 9090070 10908084 13635105 18180140 27270210 54540420