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54897031404 = 22321524917539
BaseRepresentation
bin110011001000000111…
…100011100011101100
312020200212110010211100
4303020013203203230
51344412120001104
641115213523100
73652254032145
oct631007434354
9166625403740
1054897031404
1121310a41246
12a780aa3490
13523b488847
14292ac6aacc
15166475c139
hexcc81e38ec

54897031404 has 18 divisors (see below), whose sum is σ = 138767496140. Its totient is φ = 18299010456.

The previous prime is 54897031393. The next prime is 54897031421. The reversal of 54897031404 is 40413079845.

54897031404 is a `hidden beast` number, since 548 + 9 + 70 + 31 + 4 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×548970314042 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54897031404.

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 in 5 ways as a sum of consecutive naturals, for example, 762458734 + ... + 762458805.

Almost surely, 254897031404 is an apocalyptic number.

It is an amenable number.

54897031404 is an abundant number, since it is smaller than the sum of its proper divisors (83870464736).

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

54897031404 is a wasteful number, since it uses less digits than its factorization.

54897031404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524917549 (or 1524917544 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 54897031404 in words is "fifty-four billion, eight hundred ninety-seven million, thirty-one thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 1524917539 3049835078 4574752617 6099670156 9149505234 13724257851 18299010468 27448515702 54897031404