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250000401 = 3721700683
BaseRepresentation
bin11101110011010…
…11010000010001
3122102102100002010
432321223100101
51003000003101
640450213133
76123653100
oct1671532021
9572370063
10250000401
11119134002
126b8841a9
133ca42941
14252ba037
1516e342d6
hexee6b411

250000401 has 12 divisors (see below), whose sum is σ = 387755952. Its totient is φ = 142857288.

The previous prime is 250000393. The next prime is 250000433. The reversal of 250000401 is 104000052.

250000401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 250000401 - 23 = 250000393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (250000801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 850195 + ... + 850488.

It is an arithmetic number, because the mean of its divisors is an integer number (32312996).

Almost surely, 2250000401 is an apocalyptic number.

250000401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

250000401 is a deficient number, since it is larger than the sum of its proper divisors (137755551).

250000401 is a wasteful number, since it uses less digits than its factorization.

250000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700700 (or 1700693 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 250000401 is about 15811.4009815702. The cubic root of 250000401 is about 629.9608617662.

Adding to 250000401 its reverse (104000052), we get a palindrome (354000453).

The spelling of 250000401 in words is "two hundred fifty million, four hundred one", and thus it is an aban number.

Divisors: 1 3 7 21 49 147 1700683 5102049 11904781 35714343 83333467 250000401