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54639330 = 2351821311
BaseRepresentation
bin1101000001101…
…1101011100010
310210210222001220
43100123223202
5102441424310
65231035510
71232266224
oct320335342
9123728056
1054639330
112892a379
121636bb96
13b420c85
147384414
154be4670
hex341bae2

54639330 has 16 divisors (see below), whose sum is σ = 131134464. Its totient is φ = 14570480.

The previous prime is 54639313. The next prime is 54639331. The reversal of 54639330 is 3393645.

54639330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 54639291 and 54639300.

It is not an unprimeable number, because it can be changed into a prime (54639331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910626 + ... + 910685.

It is an arithmetic number, because the mean of its divisors is an integer number (8195904).

Almost surely, 254639330 is an apocalyptic number.

54639330 is an abundant number, since it is smaller than the sum of its proper divisors (76495134).

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

54639330 is a wasteful number, since it uses less digits than its factorization.

54639330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821321.

The product of its (nonzero) digits is 29160, while the sum is 33.

The square root of 54639330 is about 7391.8421249375. The cubic root of 54639330 is about 379.4621430399.

The spelling of 54639330 in words is "fifty-four million, six hundred thirty-nine thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1821311 3642622 5463933 9106555 10927866 18213110 27319665 54639330