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258434349 = 3857100519
BaseRepresentation
bin11110110011101…
…10010100101101
3200000021211021120
433121312110231
51012124344344
641351051153
76255440625
oct1731662455
9600254246
10258434349
11122974608
1272670ab9
1341706744
1426473885
1517a4d219
hexf67652d

258434349 has 8 divisors (see below), whose sum is σ = 344984640. Its totient is φ = 172086816.

The previous prime is 258434347. The next prime is 258434353. The reversal of 258434349 is 943434852.

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

It is not a de Polignac number, because 258434349 - 21 = 258434347 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 258434349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258434347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47689 + ... + 52830.

It is an arithmetic number, because the mean of its divisors is an integer number (43123080).

Almost surely, 2258434349 is an apocalyptic number.

It is an amenable number.

258434349 is a deficient number, since it is larger than the sum of its proper divisors (86550291).

258434349 is a wasteful number, since it uses less digits than its factorization.

258434349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101379.

The product of its digits is 414720, while the sum is 42.

The square root of 258434349 is about 16075.8934121871. The cubic root of 258434349 is about 636.9667248148.

The spelling of 258434349 in words is "two hundred fifty-eight million, four hundred thirty-four thousand, three hundred forty-nine".

Divisors: 1 3 857 2571 100519 301557 86144783 258434349