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258870375 = 3253230107
BaseRepresentation
bin11110110111000…
…00110001100111
3200001002222101200
433123200301213
51012232323000
641404253543
76262235061
oct1733406147
9601088350
10258870375
11123142165
12728412b3
134182a04a
1426548731
1517ad7500
hexf6e0c67

258870375 has 24 divisors (see below), whose sum is σ = 466659024. Its totient is φ = 138063600.

The previous prime is 258870361. The next prime is 258870377. The reversal of 258870375 is 573078852.

It is not a de Polignac number, because 258870375 - 27 = 258870247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 258870375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258870377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113929 + ... + 116178.

It is an arithmetic number, because the mean of its divisors is an integer number (19444126).

Almost surely, 2258870375 is an apocalyptic number.

258870375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

258870375 is a deficient number, since it is larger than the sum of its proper divisors (207788649).

258870375 is a wasteful number, since it uses less digits than its factorization.

258870375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230128 (or 230115 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 258870375 is about 16089.4491826165. The cubic root of 258870375 is about 637.3247499824.

The spelling of 258870375 in words is "two hundred fifty-eight million, eight hundred seventy thousand, three hundred seventy-five".

Divisors: 1 3 5 9 15 25 45 75 125 225 375 1125 230107 690321 1150535 2070963 3451605 5752675 10354815 17258025 28763375 51774075 86290125 258870375