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48778688 = 267108881
BaseRepresentation
bin1011101000010…
…0110111000000
310101210012210002
42322010313000
544441404223
64501255132
71131416630
oct272046700
9111705702
1048778688
1125597172
12144044a8
13a14b53a
14669a6c0
154437e28
hex2e84dc0

48778688 has 28 divisors (see below), whose sum is σ = 110624112. Its totient is φ = 20904960.

The previous prime is 48778687. The next prime is 48778703. The reversal of 48778688 is 88687784.

It is a tau number, because it is divible by the number of its divisors (28).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48778687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53993 + ... + 54888.

Almost surely, 248778688 is an apocalyptic number.

It is an amenable number.

48778688 is an abundant number, since it is smaller than the sum of its proper divisors (61845424).

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

48778688 is a wasteful number, since it uses less digits than its factorization.

48778688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108900 (or 108890 counting only the distinct ones).

The product of its digits is 4816896, while the sum is 56.

The square root of 48778688 is about 6984.1741100863. The cubic root of 48778688 is about 365.3788223086.

The spelling of 48778688 in words is "forty-eight million, seven hundred seventy-eight thousand, six hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 224 448 108881 217762 435524 762167 871048 1524334 1742096 3048668 3484192 6097336 6968384 12194672 24389344 48778688