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53828450 = 2521382813
BaseRepresentation
bin1100110101010…
…1101101100010
310202021202202022
43031111231202
5102240002300
65201421442
71222351154
oct315255542
9122252668
1053828450
1128426125
121603a882
13b1c8b70
147212ad4
154ad4285
hex3355b62

53828450 has 24 divisors (see below), whose sum is σ = 107823828. Its totient is φ = 19874880.

The previous prime is 53828447. The next prime is 53828471. The reversal of 53828450 is 5482835.

It can be written as a sum of positive squares in 6 ways, for example, as 15499969 + 38328481 = 3937^2 + 6191^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53828450.

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, 40757 + ... + 42056.

Almost surely, 253828450 is an apocalyptic number.

53828450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53828450 is an abundant number, since it is smaller than the sum of its proper divisors (53995378).

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

53828450 is a wasteful number, since it uses less digits than its factorization.

53828450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82838 (or 82833 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 53828450 is about 7336.7874441066. The cubic root of 53828450 is about 377.5756321130.

The spelling of 53828450 in words is "fifty-three million, eight hundred twenty-eight thousand, four hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 130 325 650 82813 165626 414065 828130 1076569 2070325 2153138 4140650 5382845 10765690 26914225 53828450