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54253620 = 22325301409
BaseRepresentation
bin1100111011110…
…1100000110100
310210002100222100
43032331200310
5102342103440
65214502100
71226101551
oct316754064
9123070870
1054253620
1128696603
1216204930
13b317545
1472c3a28
154b6a230
hex33bd834

54253620 has 36 divisors (see below), whose sum is σ = 164569860. Its totient is φ = 14467584.

The previous prime is 54253571. The next prime is 54253637. The reversal of 54253620 is 2635245.

It can be written as a sum of positive squares in 2 ways, for example, as 22240656 + 32012964 = 4716^2 + 5658^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150525 + ... + 150884.

It is an arithmetic number, because the mean of its divisors is an integer number (4571385).

Almost surely, 254253620 is an apocalyptic number.

It is an amenable number.

54253620 is an abundant number, since it is smaller than the sum of its proper divisors (110316240).

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

54253620 is a wasteful number, since it uses less digits than its factorization.

54253620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301424 (or 301419 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 54253620 is about 7365.7056688412. The cubic root of 54253620 is about 378.5671338915.

Adding to 54253620 its reverse (2635245), we get a palindrome (56888865).

It can be divided in two parts, 5425 and 3620, that added together give a triangular number (9045 = T134).

The spelling of 54253620 in words is "fifty-four million, two hundred fifty-three thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 301409 602818 904227 1205636 1507045 1808454 2712681 3014090 3616908 4521135 5425362 6028180 9042270 10850724 13563405 18084540 27126810 54253620