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55073808 = 2432382457
BaseRepresentation
bin1101001000010…
…1110000010000
310211122001001200
43102011300100
5103044330213
65244231200
71236056016
oct322056020
9124561050
1055073808
11290a6849
121653b500
13b54396a
1474588b6
154c7d273
hex3485c10

55073808 has 30 divisors (see below), whose sum is σ = 154130574. Its totient is φ = 18357888.

The previous prime is 55073807. The next prime is 55073819. The reversal of 55073808 is 80837055.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 34715664 + 20358144 = 5892^2 + 4512^2 .

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 (55073803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191085 + ... + 191372.

Almost surely, 255073808 is an apocalyptic number.

It is an amenable number.

55073808 is an abundant number, since it is smaller than the sum of its proper divisors (99056766).

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

55073808 is a wasteful number, since it uses less digits than its factorization.

55073808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382471 (or 382462 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 55073808 is about 7421.1729531119. The cubic root of 55073808 is about 380.4652841676.

The spelling of 55073808 in words is "fifty-five million, seventy-three thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 382457 764914 1147371 1529828 2294742 3059656 3442113 4589484 6119312 6884226 9178968 13768452 18357936 27536904 55073808