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55040200143 = 3612231348727
BaseRepresentation
bin110011010000101001…
…101100110111001111
312021001211211212102020
4303100221230313033
51400210242401033
641141330301223
73655642660545
oct632051546717
9167054755366
1055040200143
1121384838015
12a800a27813
135262035286
142941c97d95
1516720dc6b3
hexcd0a6cdcf

55040200143 has 16 divisors (see below), whose sum is σ = 74924537856. Its totient is φ = 35930060640.

The previous prime is 55040200139. The next prime is 55040200169. The reversal of 55040200143 is 34100204055.

It is not a de Polignac number, because 55040200143 - 22 = 55040200139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55040200543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633555 + ... + 715172.

It is an arithmetic number, because the mean of its divisors is an integer number (4682783616).

Almost surely, 255040200143 is an apocalyptic number.

55040200143 is a deficient number, since it is larger than the sum of its proper divisors (19884337713).

55040200143 is a wasteful number, since it uses less digits than its factorization.

55040200143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349014.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 55040200143 its reverse (34100204055), we get a palindrome (89140404198).

The spelling of 55040200143 in words is "fifty-five billion, forty million, two hundred thousand, one hundred forty-three".

Divisors: 1 3 61 183 223 669 13603 40809 1348727 4046181 82272347 246817041 300766121 902298363 18346733381 55040200143