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3872055 = 351131757
BaseRepresentation
bin1110110001010100110111
321021201110110
432301110313
51442401210
6214554103
744624535
oct16612467
97251413
103872055
112205150
121368933
13a57575
1472b155
15517420
hex3b1537

3872055 has 32 divisors (see below), whose sum is σ = 6985728. Its totient is φ = 1814400.

The previous prime is 3872047. The next prime is 3872059. The reversal of 3872055 is 5502783.

It is a happy number.

It is not a de Polignac number, because 3872055 - 23 = 3872047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3872059) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 4737 + ... + 5493.

It is an arithmetic number, because the mean of its divisors is an integer number (218304).

Almost surely, 23872055 is an apocalyptic number.

3872055 is a deficient number, since it is larger than the sum of its proper divisors (3113673).

3872055 is a wasteful number, since it uses less digits than its factorization.

3872055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 3872055 is about 1967.7537955750. The cubic root of 3872055 is about 157.0292317134.

It can be divided in two parts, 387 and 2055, that added together give a palindrome (2442).

The spelling of 3872055 in words is "three million, eight hundred seventy-two thousand, fifty-five".

Divisors: 1 3 5 11 15 31 33 55 93 155 165 341 465 757 1023 1705 2271 3785 5115 8327 11355 23467 24981 41635 70401 117335 124905 258137 352005 774411 1290685 3872055