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258080054 = 2157821911
BaseRepresentation
bin11110110000111…
…11110100110110
3122222121211021112
433120133310312
51012032030204
641335315022
76252433661
oct1730376466
9588554245
10258080054
11122752401
127251ba72
13416113bb
14263c06d8
15179cd26e
hexf61fd36

258080054 has 8 divisors (see below), whose sum is σ = 389586288. Its totient is φ = 128217960.

The previous prime is 258080051. The next prime is 258080071. The reversal of 258080054 is 450080852.

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

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 258080054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258080051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410642 + ... + 411269.

It is an arithmetic number, because the mean of its divisors is an integer number (48698286).

Almost surely, 2258080054 is an apocalyptic number.

258080054 is a deficient number, since it is larger than the sum of its proper divisors (131506234).

258080054 is a wasteful number, since it uses less digits than its factorization.

258080054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822070.

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 258080054 is about 16064.8701831045. The cubic root of 258080054 is about 636.6755130971.

The spelling of 258080054 in words is "two hundred fifty-eight million, eighty thousand, fifty-four".

Divisors: 1 2 157 314 821911 1643822 129040027 258080054