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250388049 = 31511633391
BaseRepresentation
bin11101110110010…
…01111001010001
3122110011000211110
432323021321101
51003044404144
640502403533
76130156212
oct1673117121
9573130743
10250388049
1111937927a
126ba305a9
133cb4a212
142537b409
1516eae0b9
hexeec9e51

250388049 has 16 divisors (see below), whose sum is σ = 338223104. Its totient is φ = 164754000.

The previous prime is 250388041. The next prime is 250388063. The reversal of 250388049 is 940883052.

It is a happy number.

It is not a de Polignac number, because 250388049 - 23 = 250388041 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 = 250387998 and 250388016.

It is not an unprimeable number, because it can be changed into a prime (250388041) 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, 72144 + ... + 75534.

It is an arithmetic number, because the mean of its divisors is an integer number (21138944).

Almost surely, 2250388049 is an apocalyptic number.

It is an amenable number.

250388049 is a deficient number, since it is larger than the sum of its proper divisors (87835055).

250388049 is a wasteful number, since it uses less digits than its factorization.

250388049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 250388049 is about 15823.6547295497. The cubic root of 250388049 is about 630.2862971871.

The spelling of 250388049 in words is "two hundred fifty million, three hundred eighty-eight thousand, forty-nine".

Divisors: 1 3 151 163 453 489 3391 10173 24613 73839 512041 552733 1536123 1658199 83462683 250388049