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248303421 = 3341224303
BaseRepresentation
bin11101100110011…
…00111100111101
3122022020010021000
432303030330331
51002031202141
640350000513
76103354452
oct1663147475
9568203230
10248303421
11118185043
126b1a6139
133c59a402
1424d97829
1516beb5b6
hexecccf3d

248303421 has 16 divisors (see below), whose sum is σ = 376830720. Its totient is φ = 161497440.

The previous prime is 248303369. The next prime is 248303437. The reversal of 248303421 is 124303842.

It is not a de Polignac number, because 248303421 - 211 = 248301373 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248301421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111045 + ... + 113258.

It is an arithmetic number, because the mean of its divisors is an integer number (23551920).

Almost surely, 2248303421 is an apocalyptic number.

It is an amenable number.

248303421 is a deficient number, since it is larger than the sum of its proper divisors (128527299).

248303421 is a wasteful number, since it uses less digits than its factorization.

248303421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224353 (or 224347 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 248303421 is about 15757.6464295909. The cubic root of 248303421 is about 628.5322520915.

The spelling of 248303421 in words is "two hundred forty-eight million, three hundred three thousand, four hundred twenty-one".

Divisors: 1 3 9 27 41 123 369 1107 224303 672909 2018727 6056181 9196423 27589269 82767807 248303421