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248503428 = 223217339901
BaseRepresentation
bin11101100111111…
…01110010000100
3122022121021121200
432303331302010
51002104102203
640354142500
76105146535
oct1663756204
9568537550
10248503428
11118301338
126b281a30
133c63a464
142500a68c
1516c3a9a3
hexecfdc84

248503428 has 36 divisors (see below), whose sum is σ = 631808268. Its totient is φ = 82353600.

The previous prime is 248503369. The next prime is 248503459. The reversal of 248503428 is 824305842.

It can be written as a sum of positive squares in 2 ways, for example, as 111894084 + 136609344 = 10578^2 + 11688^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 248503392 and 248503401.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13723 + ... + 26178.

Almost surely, 2248503428 is an apocalyptic number.

It is an amenable number.

248503428 is an abundant number, since it is smaller than the sum of its proper divisors (383304840).

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

248503428 is a wasteful number, since it uses less digits than its factorization.

248503428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40084 (or 40079 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 248503428 is about 15763.9914996171. The cubic root of 248503428 is about 628.7009665238.

The spelling of 248503428 in words is "two hundred forty-eight million, five hundred three thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 173 346 519 692 1038 1557 2076 3114 6228 39901 79802 119703 159604 239406 359109 478812 718218 1436436 6902873 13805746 20708619 27611492 41417238 62125857 82834476 124251714 248503428