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48027780 = 22325266821
BaseRepresentation
bin1011011100110…
…1100010000100
310100101001201200
42313031202010
544243342110
64433222500
71122141453
oct267154204
9110331650
1048027780
1125123a89
1214101a30
139c47808
146542b9a
15433a6c0
hex2dcd884

48027780 has 36 divisors (see below), whose sum is σ = 145684812. Its totient is φ = 12807360.

The previous prime is 48027761. The next prime is 48027781. The reversal of 48027780 is 8772084.

It can be written as a sum of positive squares in 2 ways, for example, as 22867524 + 25160256 = 4782^2 + 5016^2 .

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 not an unprimeable number, because it can be changed into a prime (48027781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133231 + ... + 133590.

Almost surely, 248027780 is an apocalyptic number.

It is an amenable number.

48027780 is an abundant number, since it is smaller than the sum of its proper divisors (97657032).

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

48027780 is a wasteful number, since it uses less digits than its factorization.

48027780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266836 (or 266831 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 48027780 is about 6930.2077890926. The cubic root of 48027780 is about 363.4942156148.

The spelling of 48027780 in words is "forty-eight million, twenty-seven thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 266821 533642 800463 1067284 1334105 1600926 2401389 2668210 3201852 4002315 4802778 5336420 8004630 9605556 12006945 16009260 24013890 48027780