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253062500 = 22564049
BaseRepresentation
bin11110001010101…
…10110101100100
3122122011220111012
433011112311210
51004241000000
641040001352
76161665355
oct1705266544
9578156435
10253062500
1111a935669
1270900258
1340575632
1425875d2c
151733b735
hexf156d64

253062500 has 42 divisors (see below), whose sum is σ = 553703850. Its totient is φ = 101200000.

The previous prime is 253062487. The next prime is 253062533. The reversal of 253062500 is 5260352.

It is a happy number.

It can be written as a sum of positive squares in 7 ways, for example, as 246050596 + 7011904 = 15686^2 + 2648^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 60476 + ... + 64524.

It is an arithmetic number, because the mean of its divisors is an integer number (13183425).

Almost surely, 2253062500 is an apocalyptic number.

253062500 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 253062500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276851925).

253062500 is an abundant number, since it is smaller than the sum of its proper divisors (300641350).

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

253062500 is an frugal number, since it uses more digits than its factorization.

253062500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083 (or 4056 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 253062500 is about 15907.9382699330. The cubic root of 253062500 is about 632.5224309459.

It can be divided in two parts, 25 and 3062500, that multiplied together give a square (76562500 = 87502).

The spelling of 253062500 in words is "two hundred fifty-three million, sixty-two thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 625 1250 2500 3125 4049 6250 8098 12500 15625 16196 20245 31250 40490 62500 80980 101225 202450 404900 506125 1012250 2024500 2530625 5061250 10122500 12653125 25306250 50612500 63265625 126531250 253062500