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2054155 = 53111321
BaseRepresentation
bin111110101100000001011
310212100202211
413311200023
51011213110
6112005551
723313535
oct7654013
93770684
102054155
111183354
128308b7
1356bc9c
143b6855
152a898a
hex1f580b

2054155 has 8 divisors (see below), whose sum is σ = 2474784. Its totient is φ = 1636800.

The previous prime is 2054149. The next prime is 2054159. The reversal of 2054155 is 5514502.

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

It is not a de Polignac number, because 2054155 - 27 = 2054027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2054159) 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 7 ways as a sum of consecutive naturals, for example, 895 + ... + 2215.

It is an arithmetic number, because the mean of its divisors is an integer number (309348).

22054155 is an apocalyptic number.

2054155 is a deficient number, since it is larger than the sum of its proper divisors (420629).

2054155 is a wasteful number, since it uses less digits than its factorization.

2054155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 2054155 is about 1433.2323607845. The cubic root of 2054155 is about 127.1191763689.

Adding to 2054155 its reverse (5514502), we get a palindrome (7568657).

It can be divided in two parts, 2054 and 155, that added together give a square (2209 = 472).

The spelling of 2054155 in words is "two million, fifty-four thousand, one hundred fifty-five".

Divisors: 1 5 311 1321 1555 6605 410831 2054155