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250670430 = 2335928409
BaseRepresentation
bin11101111000011…
…10110101011110
3122110200101012000
432330032311132
51003132423210
640512423130
76132443403
oct1674166536
9573611160
10250670430
1111955144a
126bb47aa6
133cc188ca
14254122aa
1517017ac0
hexef0ed5e

250670430 has 32 divisors (see below), whose sum is σ = 668455200. Its totient is φ = 66845376.

The previous prime is 250670377. The next prime is 250670473. The reversal of 250670430 is 34076052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 250670394 and 250670403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463935 + ... + 464474.

It is an arithmetic number, because the mean of its divisors is an integer number (20889225).

Almost surely, 2250670430 is an apocalyptic number.

250670430 is an abundant number, since it is smaller than the sum of its proper divisors (417784770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250670430 is a wasteful number, since it uses less digits than its factorization.

250670430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928425 (or 928419 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 250670430 is about 15832.5749642943. The cubic root of 250670430 is about 630.5231482270.

The spelling of 250670430 in words is "two hundred fifty million, six hundred seventy thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 928409 1856818 2785227 4642045 5570454 8355681 9284090 13926135 16711362 25067043 27852270 41778405 50134086 83556810 125335215 250670430