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423250280 = 23510581257
BaseRepresentation
bin11001001110100…
…100100101101000
31002111102100020022
4121032210211220
51331323002110
6105555420012
713326365555
oct3116444550
91074370208
10423250280
111a7a06222
12b98b4608
13698c226b
14402d7a2c
1527257755
hex193a4968

423250280 has 16 divisors (see below), whose sum is σ = 952313220. Its totient is φ = 169300096.

The previous prime is 423250279. The next prime is 423250291. The reversal of 423250280 is 82052324.

It can be written as a sum of positive squares in 2 ways, for example, as 403126084 + 20124196 = 20078^2 + 4486^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5290589 + ... + 5290668.

Almost surely, 2423250280 is an apocalyptic number.

423250280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423250280 is an abundant number, since it is smaller than the sum of its proper divisors (529062940).

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

423250280 is a wasteful number, since it uses less digits than its factorization.

423250280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10581268 (or 10581264 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 423250280 is about 20573.0474164622. The cubic root of 423250280 is about 750.8140967497.

The spelling of 423250280 in words is "four hundred twenty-three million, two hundred fifty thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 10581257 21162514 42325028 52906285 84650056 105812570 211625140 423250280