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4000054 = 231149433
BaseRepresentation
bin1111010000100100110110
321112020001011
433100210312
52011000204
6221422434
745666652
oct17204466
97466034
104000054
112292333
12140aa1a
13aa08c6
14761a62
15540304
hex3d0936

4000054 has 16 divisors (see below), whose sum is σ = 6249600. Its totient is φ = 1918080.

The previous prime is 4000043. The next prime is 4000063. The reversal of 4000054 is 4500004.

4000054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

4000054 is a modest number, since divided by 54 gives 4 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 3999998 and 4000043.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9022 + ... + 9454.

It is an arithmetic number, because the mean of its divisors is an integer number (390600).

Almost surely, 24000054 is an apocalyptic number.

4000054 is a deficient number, since it is larger than the sum of its proper divisors (2249546).

4000054 is a wasteful number, since it uses less digits than its factorization.

4000054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 4000054 is about 2000.0134999544. The cubic root of 4000054 is about 158.7408195241.

Adding to 4000054 its reverse (4500004), we get a palindrome (8500058).

The spelling of 4000054 in words is "four million, fifty-four", and thus it is an aban number and an eban number.

Divisors: 1 2 31 62 149 298 433 866 4619 9238 13423 26846 64517 129034 2000027 4000054