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254805425 = 5274013631
BaseRepresentation
bin11110011000000…
…00010110110001
3122202110110022222
433030000112301
51010212233200
641141210425
76212544650
oct1714002661
9582413288
10254805425
111209160a6
1271400a15
1340a35a54
1425bab197
1517582d85
hexf3005b1

254805425 has 24 divisors (see below), whose sum is σ = 362095872. Its totient is φ = 174240000.

The previous prime is 254805389. The next prime is 254805433. The reversal of 254805425 is 524508452.

It is not a de Polignac number, because 254805425 - 210 = 254804401 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68360 + ... + 71990.

It is an arithmetic number, because the mean of its divisors is an integer number (15087328).

Almost surely, 2254805425 is an apocalyptic number.

254805425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

254805425 is a deficient number, since it is larger than the sum of its proper divisors (107290447).

254805425 is a wasteful number, since it uses less digits than its factorization.

254805425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049 (or 4044 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The square root of 254805425 is about 15962.6258804747. The cubic root of 254805425 is about 633.9712401580.

The spelling of 254805425 in words is "two hundred fifty-four million, eight hundred five thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 175 401 2005 2807 3631 10025 14035 18155 25417 70175 90775 127085 635425 1456031 7280155 10192217 36400775 50961085 254805425