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55140005504 = 271373144389
BaseRepresentation
bin110011010110100110…
…011011011010000000
312021022210122111122002
4303112212123122000
51400411320134004
641155253403132
73661264212353
oct632646333200
9167283574562
1055140005504
1121426106291
12a82a3394a8
13527990b2bc
14295123829a
15167ac5461e
hexcd699b680

55140005504 has 32 divisors (see below), whose sum is σ = 110651084100. Its totient is φ = 27368753152.

The previous prime is 55140005491. The next prime is 55140005533. The reversal of 55140005504 is 40550004155.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 54999630400 + 140375104 = 234520^2 + 11848^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 1554659 + ... + 1589730.

Almost surely, 255140005504 is an apocalyptic number.

It is an amenable number.

55140005504 is an abundant number, since it is smaller than the sum of its proper divisors (55511078596).

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

55140005504 is a wasteful number, since it uses less digits than its factorization.

55140005504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144540 (or 3144528 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

Adding to 55140005504 its reverse (40550004155), we get a palindrome (95690009659).

The spelling of 55140005504 in words is "fifty-five billion, one hundred forty million, five thousand, five hundred four".

Divisors: 1 2 4 8 16 32 64 128 137 274 548 1096 2192 4384 8768 17536 3144389 6288778 12577556 25155112 50310224 100620448 201240896 402481792 430781293 861562586 1723125172 3446250344 6892500688 13785001376 27570002752 55140005504