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2920253 = 7261977
BaseRepresentation
bin1011001000111100111101
312111100211112
423020330331
51221422003
6142331405
733551600
oct13107475
95440745
102920253
111715036
12b89b65
137b327b
14560337
153ca3d8
hex2c8f3d

2920253 has 12 divisors (see below), whose sum is σ = 3456252. Its totient is φ = 2459520.

The previous prime is 2920249. The next prime is 2920273. The reversal of 2920253 is 3520292.

It can be written as a sum of positive squares in 2 ways, for example, as 1350244 + 1570009 = 1162^2 + 1253^2 .

It is not a de Polignac number, because 2920253 - 22 = 2920249 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2920273) 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 11 ways as a sum of consecutive naturals, for example, 2501 + ... + 3477.

It is an arithmetic number, because the mean of its divisors is an integer number (288021).

22920253 is an apocalyptic number.

It is an amenable number.

2920253 is a deficient number, since it is larger than the sum of its proper divisors (535999).

2920253 is an equidigital number, since it uses as much as digits as its factorization.

2920253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2920253 is about 1708.8747759856. The cubic root of 2920253 is about 142.9355178984.

The spelling of 2920253 in words is "two million, nine hundred twenty thousand, two hundred fifty-three".

Divisors: 1 7 49 61 427 977 2989 6839 47873 59597 417179 2920253