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257082 = 2376121
BaseRepresentation
bin111110110000111010
3111001122120
4332300322
531211312
65302110
72120340
oct766072
9431576
10257082
11166171
12104936
1390027
1469990
155128c
hex3ec3a

257082 has 16 divisors (see below), whose sum is σ = 587712. Its totient is φ = 73440.

The previous prime is 257077. The next prime is 257093. The reversal of 257082 is 280752.

It is an unprimeable number.

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, 3019 + ... + 3102.

It is an arithmetic number, because the mean of its divisors is an integer number (36732).

2257082 is an apocalyptic number.

257082 is an abundant number, since it is smaller than the sum of its proper divisors (330630).

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

257082 is a wasteful number, since it uses less digits than its factorization.

257082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6133.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 257082 is about 507.0325433343. The cubic root of 257082 is about 63.5853730059.

The spelling of 257082 in words is "two hundred fifty-seven thousand, eighty-two".

Divisors: 1 2 3 6 7 14 21 42 6121 12242 18363 36726 42847 85694 128541 257082