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131402707453 = 187577005529
BaseRepresentation
bin111101001100000110…
…1100011000111111101
3110120011200101011111201
41322120031203013331
54123103043114303
6140210544015501
712331165404313
oct1723015430775
9416150334451
10131402707453
1150800447a96
1221572601591
13c511690744
1465078c40b3
15364109081d
hex1e983631fd

131402707453 has 4 divisors (see below), whose sum is σ = 131409731740. Its totient is φ = 131395683168.

The previous prime is 131402707417. The next prime is 131402707463. The reversal of 131402707453 is 354707204131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83328636889 + 48074070564 = 288667^2 + 219258^2 .

It is a cyclic number.

It is not a de Polignac number, because 131402707453 - 221 = 131400610301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131402707463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3484008 + ... + 3521521.

It is an arithmetic number, because the mean of its divisors is an integer number (32852432935).

Almost surely, 2131402707453 is an apocalyptic number.

It is an amenable number.

131402707453 is a deficient number, since it is larger than the sum of its proper divisors (7024287).

131402707453 is an equidigital number, since it uses as much as digits as its factorization.

131402707453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7024286.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 131402707453 in words is "one hundred thirty-one billion, four hundred two million, seven hundred seven thousand, four hundred fifty-three".

Divisors: 1 18757 7005529 131402707453