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200101025 = 5213615881
BaseRepresentation
bin10111110110101…
…00110010100001
3111221112012000002
423323110302201
5402211213100
631504505345
74646554625
oct1373246241
9457465002
10200101025
11a2a51953
125701b255
13325c1297
141c80b185
15128792d5
hexbed4ca1

200101025 has 12 divisors (see below), whose sum is σ = 248349804. Its totient is φ = 159936000.

The previous prime is 200101007. The next prime is 200101039. The reversal of 200101025 is 520101002.

It can be written as a sum of positive squares in 6 ways, for example, as 3876961 + 196224064 = 1969^2 + 14008^2 .

It is not a de Polignac number, because 200101025 - 26 = 200100961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200100997 and 200101015.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31085 + ... + 36965.

It is an arithmetic number, because the mean of its divisors is an integer number (20695817).

Almost surely, 2200101025 is an apocalyptic number.

200101025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

200101025 is a deficient number, since it is larger than the sum of its proper divisors (48248779).

200101025 is a wasteful number, since it uses less digits than its factorization.

200101025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7252 (or 7247 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 200101025 is about 14145.7069459253. The cubic root of 200101025 is about 584.9019973653.

Adding to 200101025 its reverse (520101002), we get a palindrome (720202027).

The spelling of 200101025 in words is "two hundred million, one hundred one thousand, twenty-five".

Divisors: 1 5 25 1361 5881 6805 29405 34025 147025 8004041 40020205 200101025