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54131020 = 22553223229
BaseRepresentation
bin1100111001111…
…1100101001100
310202212010210121
43032133211030
5102324143040
65212114324
71225051246
oct316374514
9122763717
1054131020
1128612489
12161659a4
13b2a37b8
147291096
154b43c4a
hex339f94c

54131020 has 48 divisors (see below), whose sum is σ = 116847360. Its totient is φ = 21056256.

The previous prime is 54131017. The next prime is 54131027. The reversal of 54131020 is 2013145.

It is a junction number, because it is equal to n+sod(n) for n = 54130985 and 54131003.

It is not an unprimeable number, because it can be changed into a prime (54131027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236266 + ... + 236494.

It is an arithmetic number, because the mean of its divisors is an integer number (2434320).

Almost surely, 254131020 is an apocalyptic number.

It is an amenable number.

54131020 is an abundant number, since it is smaller than the sum of its proper divisors (62716340).

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

54131020 is a wasteful number, since it uses less digits than its factorization.

54131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 54131020 is about 7357.3786092602. The cubic root of 54131020 is about 378.2817622440.

Adding to 54131020 its reverse (2013145), we get a palindrome (56144165).

The spelling of 54131020 in words is "fifty-four million, one hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 53 106 212 223 229 265 446 458 530 892 916 1060 1115 1145 2230 2290 4460 4580 11819 12137 23638 24274 47276 48548 51067 59095 60685 102134 118190 121370 204268 236380 242740 255335 510670 1021340 2706551 5413102 10826204 13532755 27065510 54131020