Search a number
-
+
256954080 = 25351075003
BaseRepresentation
bin11110101000011…
…00111011100000
3122220111121201210
433110030323200
51011240012310
641255230120
76240034155
oct1724147340
9586447653
10256954080
11122053449
1272078340
1341308a46
14261aa22c
1517859820
hexf50cee0

256954080 has 96 divisors (see below), whose sum is σ = 817133184. Its totient is φ = 67867136.

The previous prime is 256954069. The next prime is 256954127. The reversal of 256954080 is 80459652.

256954080 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 (96).

It is a congruent number.

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, 48859 + ... + 53861.

It is an arithmetic number, because the mean of its divisors is an integer number (8511804).

Almost surely, 2256954080 is an apocalyptic number.

256954080 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 256954080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408566592).

256954080 is an abundant number, since it is smaller than the sum of its proper divisors (560179104).

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

256954080 is a wasteful number, since it uses less digits than its factorization.

256954080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128 (or 5120 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 256954080 is about 16029.7872724500. The cubic root of 256954080 is about 635.7482489234.

The spelling of 256954080 in words is "two hundred fifty-six million, nine hundred fifty-four thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 107 120 160 214 240 321 428 480 535 642 856 1070 1284 1605 1712 2140 2568 3210 3424 4280 5003 5136 6420 8560 10006 10272 12840 15009 17120 20012 25015 25680 30018 40024 50030 51360 60036 75045 80048 100060 120072 150090 160096 200120 240144 300180 400240 480288 535321 600360 800480 1070642 1200720 1605963 2141284 2401440 2676605 3211926 4282568 5353210 6423852 8029815 8565136 10706420 12847704 16059630 17130272 21412840 25695408 32119260 42825680 51390816 64238520 85651360 128477040 256954080