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2054142 = 232139821
BaseRepresentation
bin111110101011111111110
310212100202100
413311133332
51011213032
6112005530
723313516
oct7653776
93770670
102054142
111183342
128308a6
1356bc8c
143b6846
152a897c
hex1f57fe

2054142 has 24 divisors (see below), whose sum is σ = 4488120. Its totient is φ = 678960.

The previous prime is 2054131. The next prime is 2054149. The reversal of 2054142 is 2414502.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054149) 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 11 ways as a sum of consecutive naturals, for example, 2092 + ... + 2912.

It is an arithmetic number, because the mean of its divisors is an integer number (187005).

22054142 is an apocalyptic number.

2054142 is an abundant number, since it is smaller than the sum of its proper divisors (2433978).

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

2054142 is a wasteful number, since it uses less digits than its factorization.

2054142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2054142 is about 1433.2278255741. The cubic root of 2054142 is about 127.1189082046.

Adding to 2054142 its reverse (2414502), we get a palindrome (4468644).

The spelling of 2054142 in words is "two million, fifty-four thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 139 278 417 821 834 1251 1642 2463 2502 4926 7389 14778 114119 228238 342357 684714 1027071 2054142