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131453220254 = 2678319959393
BaseRepresentation
bin111101001101100111…
…0001111010110011110
3110120022012102111001012
41322123032033112132
54123204011022004
6140215550415222
712332350636046
oct1723316172636
9416265374035
10131453220254
1150826a09004
1221587501512
13c51bc98385
1465104b2726
15364571c46e
hex1e9b38f59e

131453220254 has 32 divisors (see below), whose sum is σ = 203555116800. Its totient is φ = 63643041792.

The previous prime is 131453220253. The next prime is 131453220257. The reversal of 131453220254 is 452022354131.

It is a self number, because there is not a number n which added to its sum of digits gives 131453220254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131453220253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2183582 + ... + 2242974.

It is an arithmetic number, because the mean of its divisors is an integer number (6361097400).

Almost surely, 2131453220254 is an apocalyptic number.

131453220254 is a deficient number, since it is larger than the sum of its proper divisors (72101896546).

131453220254 is a wasteful number, since it uses less digits than its factorization.

131453220254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59744.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 131453220254 its reverse (452022354131), we get a palindrome (583475574385).

The spelling of 131453220254 in words is "one hundred thirty-one billion, four hundred fifty-three million, two hundred twenty thousand, two hundred fifty-four".

Divisors: 1 2 67 83 134 166 199 398 5561 11122 13333 16517 26666 33034 59393 118786 1106639 2213278 3979331 4929619 7958662 9859238 11819207 23638414 330284473 660568946 791886869 980994181 1583773738 1961988362 65726610127 131453220254