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250660427 = 1729508439
BaseRepresentation
bin11101111000011…
…00011001001011
3122110122212110112
432330030121023
51003132113202
640512304535
76132402263
oct1674143113
9573585415
10250660427
11119544986
126bb4214b
133cc141a4
142540c7a3
1517014b52
hexef0c64b

250660427 has 8 divisors (see below), whose sum is σ = 274557600. Its totient is φ = 227780224.

The previous prime is 250660411. The next prime is 250660439. The reversal of 250660427 is 724066052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 250660427 - 24 = 250660411 is a prime.

It is a super-3 number, since 3×2506604273 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250660393 and 250660402.

It is not an unprimeable number, because it can be changed into a prime (250660457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253727 + ... + 254712.

It is an arithmetic number, because the mean of its divisors is an integer number (34319700).

Almost surely, 2250660427 is an apocalyptic number.

250660427 is a deficient number, since it is larger than the sum of its proper divisors (23897173).

250660427 is a wasteful number, since it uses less digits than its factorization.

250660427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508485.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 250660427 is about 15832.2590618016. The cubic root of 250660427 is about 630.5147611097.

The spelling of 250660427 in words is "two hundred fifty million, six hundred sixty thousand, four hundred twenty-seven".

Divisors: 1 17 29 493 508439 8643463 14744731 250660427