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258781053 = 3412103911
BaseRepresentation
bin11110110110010…
…10111101111101
3200000221102212110
433123022331331
51012221443203
641402324233
76261413466
oct1733127575
9600842773
10258781053
11123091043
12727b9679
13417c84ab
1426523d6d
1517abad03
hexf6caf7d

258781053 has 8 divisors (see below), whose sum is σ = 353457216. Its totient is φ = 168312800.

The previous prime is 258781043. The next prime is 258781063. The reversal of 258781053 is 350187852.

It is an interprime number because it is at equal distance from previous prime (258781043) and next prime (258781063).

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

It is a cyclic number.

It is not a de Polignac number, because 258781053 - 24 = 258781037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258781043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051833 + ... + 1052078.

It is an arithmetic number, because the mean of its divisors is an integer number (44182152).

Almost surely, 2258781053 is an apocalyptic number.

It is an amenable number.

258781053 is a deficient number, since it is larger than the sum of its proper divisors (94676163).

258781053 is a wasteful number, since it uses less digits than its factorization.

258781053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103955.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 258781053 is about 16086.6731489143. The cubic root of 258781053 is about 637.2514395852.

The spelling of 258781053 in words is "two hundred fifty-eight million, seven hundred eighty-one thousand, fifty-three".

Divisors: 1 3 41 123 2103911 6311733 86260351 258781053