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54390903 = 3723910837
BaseRepresentation
bin1100111101111…
…1000001110111
310210100100021220
43033133001313
5102411002103
65221441423
71230213030
oct317370167
9123310256
1054390903
112877a766
1216270273
13b364b88
14731ba87
154b95c53
hex33df077

54390903 has 16 divisors (see below), whose sum is σ = 83235840. Its totient is φ = 30947616.

The previous prime is 54390893. The next prime is 54390937. The reversal of 54390903 is 30909345.

It is not a de Polignac number, because 54390903 - 214 = 54374519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54390943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400 + ... + 10437.

It is an arithmetic number, because the mean of its divisors is an integer number (5202240).

Almost surely, 254390903 is an apocalyptic number.

54390903 is a deficient number, since it is larger than the sum of its proper divisors (28844937).

54390903 is a wasteful number, since it uses less digits than its factorization.

54390903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11086.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 54390903 is about 7375.0188474335. The cubic root of 54390903 is about 378.8861728657.

The spelling of 54390903 in words is "fifty-four million, three hundred ninety thousand, nine hundred three".

Divisors: 1 3 7 21 239 717 1673 5019 10837 32511 75859 227577 2590043 7770129 18130301 54390903