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250120130 = 25136131541
BaseRepresentation
bin11101110100010…
…00011111000010
3122102122102022112
432322020133002
51003012321010
640452535322
76124662131
oct1672103702
9572572275
10250120130
11119205a57
126b921542
133ca852a0
142530b918
1516e59a05
hexee887c2

250120130 has 32 divisors (see below), whose sum is σ = 492812208. Its totient is φ = 90835200.

The previous prime is 250120103. The next prime is 250120139. The reversal of 250120130 is 31021052.

It is a happy number.

250120130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4853209 + 245266921 = 2203^2 + 15661^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (250120139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7841 + ... + 23700.

Almost surely, 2250120130 is an apocalyptic number.

250120130 is a deficient number, since it is larger than the sum of its proper divisors (242692078).

250120130 is a wasteful number, since it uses less digits than its factorization.

250120130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31622.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 250120130 is about 15815.1866887495. The cubic root of 250120130 is about 630.0614116669.

Adding to 250120130 its reverse (31021052), we get a palindrome (281141182).

The spelling of 250120130 in words is "two hundred fifty million, one hundred twenty thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 61 65 122 130 305 610 793 1586 3965 7930 31541 63082 157705 315410 410033 820066 1924001 2050165 3848002 4100330 9620005 19240010 25012013 50024026 125060065 250120130