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54236420 = 2257387403
BaseRepresentation
bin1100111011100…
…1010100000100
310210001111101022
43032321110010
5102341031140
65214250312
71226000450
oct316712404
9123044338
1054236420
1128684697
12161b6998
13b30c774
1472bb660
154b650b5
hex33b9504

54236420 has 24 divisors (see below), whose sum is σ = 130167744. Its totient is φ = 18595296.

The previous prime is 54236419. The next prime is 54236471. The reversal of 54236420 is 2463245.

It is a self number, because there is not a number n which added to its sum of digits gives 54236420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193562 + ... + 193841.

It is an arithmetic number, because the mean of its divisors is an integer number (5423656).

Almost surely, 254236420 is an apocalyptic number.

It is an amenable number.

54236420 is an abundant number, since it is smaller than the sum of its proper divisors (75931324).

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

54236420 is a wasteful number, since it uses less digits than its factorization.

54236420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387419 (or 387417 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 54236420 is about 7364.5380031608. The cubic root of 54236420 is about 378.5271240088.

Adding to 54236420 its reverse (2463245), we get a palindrome (56699665).

The spelling of 54236420 in words is "fifty-four million, two hundred thirty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 387403 774806 1549612 1937015 2711821 3874030 5423642 7748060 10847284 13559105 27118210 54236420