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250272400 = 2452721132
BaseRepresentation
bin11101110101011…
…01101010010000
3122102221011012011
432322231222100
51003032204100
640500112304
76126165100
oct1672555220
9572834164
10250272400
111192aa3a4
126b995694
133cb096a1
142534b200
1516e89bba
hexeeada90

250272400 has 135 divisors (see below), whose sum is σ = 705692091. Its totient is φ = 85048320.

The previous prime is 250272377. The next prime is 250272401. The reversal of 250272400 is 4272052.

The square root of 250272400 is 15820.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 127328656 + 122943744 = 11284^2 + 11088^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250272401) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2214744 + ... + 2214856.

Almost surely, 2250272400 is an apocalyptic number.

250272400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

250272400 is the 15820-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250272400

250272400 is an abundant number, since it is smaller than the sum of its proper divisors (455419691).

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

250272400 is a wasteful number, since it uses less digits than its factorization.

250272400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The cubic root of 250272400 is about 630.1892435596.

The spelling of 250272400 in words is "two hundred fifty million, two hundred seventy-two thousand, four hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 35 40 49 50 56 70 80 98 100 112 113 140 175 196 200 226 245 280 350 392 400 452 490 560 565 700 784 791 904 980 1130 1225 1400 1582 1808 1960 2260 2450 2800 2825 3164 3920 3955 4520 4900 5537 5650 6328 7910 9040 9800 11074 11300 12656 12769 15820 19600 19775 22148 22600 25538 27685 31640 39550 44296 45200 51076 55370 63280 63845 79100 88592 89383 102152 110740 127690 138425 158200 178766 204304 221480 255380 276850 316400 319225 357532 442960 446915 510760 553700 625681 638450 715064 893830 1021520 1107400 1251362 1276900 1430128 1787660 2214800 2234575 2502724 2553800 3128405 3575320 4469150 5005448 5107600 6256810 7150640 8938300 10010896 12513620 15642025 17876600 25027240 31284050 35753200 50054480 62568100 125136200 250272400