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54678906 = 2328336599
BaseRepresentation
bin1101000010010…
…1010101111010
310210212222100200
43100211111322
5102444211111
65231543030
71232522502
oct320452572
9123788320
1054678906
1128957087
121638aa76
13b435ca9
147394a02
154c01256
hex342557a

54678906 has 24 divisors (see below), whose sum is σ = 119901600. Its totient is φ = 18006216.

The previous prime is 54678863. The next prime is 54678913. The reversal of 54678906 is 60987645.

54678906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×546789062 = 5979565522713672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16806 + ... + 19793.

It is an arithmetic number, because the mean of its divisors is an integer number (4995900).

Almost surely, 254678906 is an apocalyptic number.

54678906 is an abundant number, since it is smaller than the sum of its proper divisors (65222694).

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

54678906 is a wasteful number, since it uses less digits than its factorization.

54678906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36690 (or 36687 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 54678906 is about 7394.5186455915. The cubic root of 54678906 is about 379.5537374367.

The spelling of 54678906 in words is "fifty-four million, six hundred seventy-eight thousand, nine hundred six".

Divisors: 1 2 3 6 9 18 83 166 249 498 747 1494 36599 73198 109797 219594 329391 658782 3037717 6075434 9113151 18226302 27339453 54678906