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54533140 = 2252726657
BaseRepresentation
bin1101000000000…
…1110000010100
310210121120101221
43100001300110
5102430030030
65224500124
71231344514
oct320016024
9123546357
1054533140
1128867612
121631a644
13b3b483c
147357844
154bc2e7a
hex3401c14

54533140 has 12 divisors (see below), whose sum is σ = 114519636. Its totient is φ = 21813248.

The previous prime is 54533119. The next prime is 54533179. The reversal of 54533140 is 4133545.

It can be written as a sum of positive squares in 2 ways, for example, as 5924356 + 48608784 = 2434^2 + 6972^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1363309 + ... + 1363348.

It is an arithmetic number, because the mean of its divisors is an integer number (9543303).

Almost surely, 254533140 is an apocalyptic number.

It is an amenable number.

54533140 is an abundant number, since it is smaller than the sum of its proper divisors (59986496).

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

54533140 is a wasteful number, since it uses less digits than its factorization.

54533140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726666 (or 2726664 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 54533140 is about 7384.6557130309. The cubic root of 54533140 is about 379.2161589517.

Adding to 54533140 its reverse (4133545), we get a palindrome (58666685).

The spelling of 54533140 in words is "fifty-four million, five hundred thirty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2726657 5453314 10906628 13633285 27266570 54533140