Search a number
-
+
42878556271354 = 2171261134007981
BaseRepresentation
bin10011011111111011100010…
…00111010111001011111010
312121211011001022101122212211
421233331301013113023322
521110010240401140404
6231110045315125334
712013605411455026
oct1157756107271372
9177734038348784
1042878556271354
111273176a19aa61
1249861998a384a
131ac0579a90aab
14a83494413386
154e5582878b04
hex26ff711d72fa

42878556271354 has 8 divisors (see below), whose sum is σ = 68101236431028. Its totient is φ = 20178144127680.

The previous prime is 42878556271351. The next prime is 42878556271409. The reversal of 42878556271354 is 45317265587824.

It can be written as a sum of positive squares in 2 ways, for example, as 42691130484025 + 187425787329 = 6533845^2 + 432927^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42878556271354.

It is not an unprimeable number, because it can be changed into a prime (42878556271351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630567003957 + ... + 630567004024.

Almost surely, 242878556271354 is an apocalyptic number.

42878556271354 is a deficient number, since it is larger than the sum of its proper divisors (25222680159674).

42878556271354 is a wasteful number, since it uses less digits than its factorization.

42878556271354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261134008000.

The product of its digits is 451584000, while the sum is 67.

The spelling of 42878556271354 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred fifty-six million, two hundred seventy-one thousand, three hundred fifty-four".

Divisors: 1 2 17 34 1261134007981 2522268015962 21439278135677 42878556271354