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54440380 = 22511292411
BaseRepresentation
bin1100111110101…
…1000110111100
310210102212011101
43033223012330
5102414043010
65222502444
71230510211
oct317530674
9123385141
1054440380
1128803955
1216294a24
13b381557
147331b08
154ba573a
hex33eb1bc

54440380 has 24 divisors (see below), whose sum is σ = 114473520. Its totient is φ = 21747840.

The previous prime is 54440369. The next prime is 54440387. The reversal of 54440380 is 8304445.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54440387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21375 + ... + 23785.

It is an arithmetic number, because the mean of its divisors is an integer number (4769730).

Almost surely, 254440380 is an apocalyptic number.

It is an amenable number.

54440380 is an abundant number, since it is smaller than the sum of its proper divisors (60033140).

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

54440380 is a wasteful number, since it uses less digits than its factorization.

54440380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 54440380 is about 7378.3724492601. The cubic root of 54440380 is about 379.0010233819.

The spelling of 54440380 in words is "fifty-four million, four hundred forty thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 1129 2258 2411 4516 4822 5645 9644 11290 12055 22580 24110 48220 2722019 5444038 10888076 13610095 27220190 54440380