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425982280 = 23519560503
BaseRepresentation
bin11001011000111…
…111100101001000
31002200120010211111
4121120333211020
51333022413110
6110134140104
713361534563
oct3130774510
91080503744
10425982280
111a9501879
12ba7b1634
136a33a929
14408094da
15275e6e8a
hex1963f948

425982280 has 32 divisors (see below), whose sum is σ = 1008907200. Its totient is φ = 161424576.

The previous prime is 425982259. The next prime is 425982283. The reversal of 425982280 is 82289524.

It is a happy number.

It is a Smith number, since the sum of its digits (40) 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 (40).

It is not an unprimeable number, because it can be changed into a prime (425982283) 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, 279492 + ... + 281011.

It is an arithmetic number, because the mean of its divisors is an integer number (31528350).

Almost surely, 2425982280 is an apocalyptic number.

425982280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425982280 is an abundant number, since it is smaller than the sum of its proper divisors (582924920).

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

425982280 is a wasteful number, since it uses less digits than its factorization.

425982280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560533 (or 560529 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 425982280 is about 20639.3381676836. The cubic root of 425982280 is about 752.4260873751.

The spelling of 425982280 in words is "four hundred twenty-five million, nine hundred eighty-two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 560503 1121006 2242012 2802515 4484024 5605030 10649557 11210060 21299114 22420120 42598228 53247785 85196456 106495570 212991140 425982280