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257434010 = 2588729023
BaseRepresentation
bin11110101100000…
…10000110011010
3122221102000001222
433112002012122
51011400342020
641313412042
76244103321
oct1726020632
9587360058
10257434010
11122350a89
127226a022
1341446322
14262930b8
1517901b25
hexf58219a

257434010 has 16 divisors (see below), whose sum is σ = 463919616. Its totient is φ = 102853968.

The previous prime is 257434003. The next prime is 257434057. The reversal of 257434010 is 10434752.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5642 + ... + 23381.

It is an arithmetic number, because the mean of its divisors is an integer number (28994976).

Almost surely, 2257434010 is an apocalyptic number.

257434010 is a deficient number, since it is larger than the sum of its proper divisors (206485606).

257434010 is a wasteful number, since it uses less digits than its factorization.

257434010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29917.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 257434010 is about 16044.7502317736. The cubic root of 257434010 is about 636.1438123292.

Adding to 257434010 its reverse (10434752), we get a palindrome (267868762).

The spelling of 257434010 in words is "two hundred fifty-seven million, four hundred thirty-four thousand, ten".

Divisors: 1 2 5 10 887 1774 4435 8870 29023 58046 145115 290230 25743401 51486802 128717005 257434010