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250120442 = 21113874547
BaseRepresentation
bin11101110100010…
…00100011111010
3122102122102202002
432322020203322
51003012323232
640452541002
76124663055
oct1672104372
9572572662
10250120442
11119206210
126b921762
133ca85480
142530ba9c
1516e59b62
hexee888fa

250120442 has 16 divisors (see below), whose sum is σ = 440772192. Its totient is φ = 104945520.

The previous prime is 250120393. The next prime is 250120483. The reversal of 250120442 is 244021052.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436988 + ... + 437559.

It is an arithmetic number, because the mean of its divisors is an integer number (27548262).

Almost surely, 2250120442 is an apocalyptic number.

250120442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

250120442 is a deficient number, since it is larger than the sum of its proper divisors (190651750).

250120442 is a wasteful number, since it uses less digits than its factorization.

250120442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874573.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 250120442 is about 15815.1965526831. The cubic root of 250120442 is about 630.0616736465.

Adding to 250120442 its reverse (244021052), we get a palindrome (494141494).

The spelling of 250120442 in words is "two hundred fifty million, one hundred twenty thousand, four hundred forty-two".

Divisors: 1 2 11 13 22 26 143 286 874547 1749094 9620017 11369111 19240034 22738222 125060221 250120442