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2052154 = 21378929
BaseRepresentation
bin111110101000000111010
310212021000201
413311000322
51011132104
6111552414
723304646
oct7650072
93767021
102052154
1111818a5
1282b70a
1356b0c0
143b5c26
152a80a4
hex1f503a

2052154 has 8 divisors (see below), whose sum is σ = 3315060. Its totient is φ = 947136.

The previous prime is 2052137. The next prime is 2052157. The reversal of 2052154 is 4512502.

It can be written as a sum of positive squares in 2 ways, for example, as 2024929 + 27225 = 1423^2 + 165^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20521542 = 8422672079432, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2052157) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 39439 + ... + 39490.

22052154 is an apocalyptic number.

2052154 is a deficient number, since it is larger than the sum of its proper divisors (1262906).

2052154 is a wasteful number, since it uses less digits than its factorization.

2052154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78944.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2052154 is about 1432.5341182673. The cubic root of 2052154 is about 127.0778863801.

Adding to 2052154 its reverse (4512502), we get a palindrome (6564656).

The spelling of 2052154 in words is "two million, fifty-two thousand, one hundred fifty-four".

Divisors: 1 2 13 26 78929 157858 1026077 2052154