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250351225 = 5210199149
BaseRepresentation
bin11101110110000…
…00111001111001
3122110002011022121
432323000321321
51003042214400
640501521241
76126643645
oct1673007171
9573064277
10250351225
11119353643
126ba13221
133cb36527
142536bc25
1516ea321a
hexeec0e79

250351225 has 12 divisors (see below), whose sum is σ = 313512300. Its totient is φ = 198296000.

The previous prime is 250351181. The next prime is 250351247. The reversal of 250351225 is 522153052.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 24720784 + 225630441 = 4972^2 + 15021^2 .

It is not a de Polignac number, because 250351225 - 27 = 250351097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 250351225.

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, 47050 + ... + 52099.

It is an arithmetic number, because the mean of its divisors is an integer number (26126025).

Almost surely, 2250351225 is an apocalyptic number.

250351225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250351225 is a deficient number, since it is larger than the sum of its proper divisors (63161075).

250351225 is a wasteful number, since it uses less digits than its factorization.

250351225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99260 (or 99255 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 250351225 is about 15822.4911123375. The cubic root of 250351225 is about 630.2553974156.

The spelling of 250351225 in words is "two hundred fifty million, three hundred fifty-one thousand, two hundred twenty-five".

Divisors: 1 5 25 101 505 2525 99149 495745 2478725 10014049 50070245 250351225