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54189380 = 22572316829
BaseRepresentation
bin1100111010110…
…1110101000100
310202222002212002
43032231311010
5102333030010
65213244432
71225413350
oct316556504
9122862762
1054189380
1128652313
1216193718
13b2c422b
1472a8460
154b561a5
hex33add44

54189380 has 48 divisors (see below), whose sum is σ = 135717120. Its totient is φ = 17770368.

The previous prime is 54189347. The next prime is 54189389. The reversal of 54189380 is 8398145.

It is not an unprimeable number, because it can be changed into a prime (54189389) 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, 5195 + ... + 11634.

It is an arithmetic number, because the mean of its divisors is an integer number (2827440).

Almost surely, 254189380 is an apocalyptic number.

It is an amenable number.

54189380 is an abundant number, since it is smaller than the sum of its proper divisors (81527740).

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

54189380 is a wasteful number, since it uses less digits than its factorization.

54189380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16868 (or 16866 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 54189380 is about 7361.3436273550. The cubic root of 54189380 is about 378.4176584125.

The spelling of 54189380 in words is "fifty-four million, one hundred eighty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 16829 33658 67316 84145 117803 168290 235606 336580 387067 471212 589015 774134 1178030 1548268 1935335 2356060 2709469 3870670 5418938 7741340 10837876 13547345 27094690 54189380