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250673940 = 2237511521
BaseRepresentation
bin11101111000011…
…11101100010100
3122110200120000000
432330033230110
51003133031230
640512451300
76132456546
oct1674175424
9573616000
10250673940
11119554050
126bb49b30
133cc1a39a
1425413696
1517018b60
hexef0fb14

250673940 has 192 divisors, whose sum is σ = 862928640. Its totient is φ = 60652800.

The previous prime is 250673923. The next prime is 250673953. The reversal of 250673940 is 49376052.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 250673895 and 250673904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 480880 + ... + 481400.

It is an arithmetic number, because the mean of its divisors is an integer number (4494420).

Almost surely, 2250673940 is an apocalyptic number.

250673940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250673940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431464320).

250673940 is an abundant number, since it is smaller than the sum of its proper divisors (612254700).

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

250673940 is a wasteful number, since it uses less digits than its factorization.

250673940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 250673940 is about 15832.6858113208. The cubic root of 250673940 is about 630.5260911695.

The spelling of 250673940 in words is "two hundred fifty million, six hundred seventy-three thousand, nine hundred forty".