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258514480 = 24572320071
BaseRepresentation
bin11110110100010…
…01111000110000
3200000102220012101
433122021320300
51012134430410
641352510144
76256223350
oct1732117060
9600386171
10258514480
11122a19834
12726ab354
1341734063
1426494b60
1517a66d3a
hexf689e30

258514480 has 80 divisors (see below), whose sum is σ = 716811264. Its totient is φ = 84775680.

The previous prime is 258514453. The next prime is 258514493. The reversal of 258514480 is 84415852.

258514480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2845 + ... + 22915.

Almost surely, 2258514480 is an apocalyptic number.

258514480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258514480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358405632).

258514480 is an abundant number, since it is smaller than the sum of its proper divisors (458296784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258514480 is a wasteful number, since it uses less digits than its factorization.

258514480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20114 (or 20108 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 37.

The square root of 258514480 is about 16078.3854910871. The cubic root of 258514480 is about 637.0325513409.

The spelling of 258514480 in words is "two hundred fifty-eight million, five hundred fourteen thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 23 28 35 40 46 56 70 80 92 112 115 140 161 184 230 280 322 368 460 560 644 805 920 1288 1610 1840 2576 3220 6440 12880 20071 40142 80284 100355 140497 160568 200710 280994 321136 401420 461633 561988 702485 802840 923266 1123976 1404970 1605680 1846532 2247952 2308165 2809940 3231431 3693064 4616330 5619880 6462862 7386128 9232660 11239760 12925724 16157155 18465320 25851448 32314310 36930640 51702896 64628620 129257240 258514480