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54843930 = 23252921013
BaseRepresentation
bin1101000100110…
…1101000011010
310211012100201200
43101031220122
5103020001210
65235255030
71234110561
oct321155032
9124170650
1054843930
1128a5a069
121644a476
13b49313b
1473d8bd8
154c350c0
hex344da1a

54843930 has 48 divisors (see below), whose sum is σ = 147518280. Its totient is φ = 14120064.

The previous prime is 54843907. The next prime is 54843947. The reversal of 54843930 is 3934845.

It can be written as a sum of positive squares in 4 ways, for example, as 24472809 + 30371121 = 4947^2 + 5511^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7897 + ... + 13116.

Almost surely, 254843930 is an apocalyptic number.

54843930 is an abundant number, since it is smaller than the sum of its proper divisors (92674350).

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

54843930 is a wasteful number, since it uses less digits than its factorization.

54843930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21055 (or 21052 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 54843930 is about 7405.6687746617. The cubic root of 54843930 is about 379.9351920873.

The spelling of 54843930 in words is "fifty-four million, eight hundred forty-three thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 29 30 45 58 87 90 145 174 261 290 435 522 870 1305 2610 21013 42026 63039 105065 126078 189117 210130 315195 378234 609377 630390 945585 1218754 1828131 1891170 3046885 3656262 5484393 6093770 9140655 10968786 18281310 27421965 54843930