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55149058688 = 27430852021
BaseRepresentation
bin110011010111001000…
…111101101010000000
312021100102200110021012
4303113020331222000
51400421124334223
641200215420052
73661434156443
oct632710755200
9167312613235
1055149058688
112143022a059
12a831384628
13527b75ac09
14295251365a
15167b941c78
hexcd723da80

55149058688 has 16 divisors (see below), whose sum is σ = 109867265610. Its totient is φ = 27574529280.

The previous prime is 55149058673. The next prime is 55149058721. The reversal of 55149058688 is 88685094155.

It can be written as a sum of positive squares in only one way, i.e., 31114137664 + 24034921024 = 176392^2 + 155032^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215425883 + ... + 215426138.

Almost surely, 255149058688 is an apocalyptic number.

It is an amenable number.

55149058688 is a deficient number, since it is larger than the sum of its proper divisors (54718206922).

55149058688 is an equidigital number, since it uses as much as digits as its factorization.

55149058688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430852035 (or 430852023 counting only the distinct ones).

The product of its (nonzero) digits is 13824000, while the sum is 59.

The spelling of 55149058688 in words is "fifty-five billion, one hundred forty-nine million, fifty-eight thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 16 32 64 128 430852021 861704042 1723408084 3446816168 6893632336 13787264672 27574529344 55149058688