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13132402453 = 27774728989
BaseRepresentation
bin11000011101100000…
…01000111100010101
31020220012221011111001
430032300020330111
5203343343334303
610011040543301
7643301402422
oct141660107425
936805834431
1013132402453
115629998375
122666021b31
13131394bb51
148c8192d49
1551cda731d
hex30ec08f15

13132402453 has 4 divisors (see below), whose sum is σ = 13137134220. Its totient is φ = 13127670688.

The previous prime is 13132402447. The next prime is 13132402499. The reversal of 13132402453 is 35420423131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35420423131 = 231540018397.

It can be written as a sum of positive squares in 2 ways, for example, as 4070695204 + 9061707249 = 63802^2 + 95193^2 .

It is a cyclic number.

It is not a de Polignac number, because 13132402453 - 217 = 13132271381 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 (13132402433) 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, 2361718 + ... + 2367271.

It is an arithmetic number, because the mean of its divisors is an integer number (3284283555).

Almost surely, 213132402453 is an apocalyptic number.

It is an amenable number.

13132402453 is a deficient number, since it is larger than the sum of its proper divisors (4731767).

13132402453 is an equidigital number, since it uses as much as digits as its factorization.

13132402453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731766.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 13132402453 its reverse (35420423131), we get a palindrome (48552825584).

The spelling of 13132402453 in words is "thirteen billion, one hundred thirty-two million, four hundred two thousand, four hundred fifty-three".

Divisors: 1 2777 4728989 13132402453