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1139434453 = 2386947737
BaseRepresentation
bin100001111101010…
…0110001111010101
32221102001021020001
41003322212033111
54313143400303
6305022011301
740144014223
oct10372461725
92842037201
101139434453
115351a9a73
12279716b31
131520a9c91
14ab485b13
156a07531d
hex43ea63d5

1139434453 has 4 divisors (see below), whose sum is σ = 1139506060. Its totient is φ = 1139362848.

The previous prime is 1139434441. The next prime is 1139434477. The reversal of 1139434453 is 3544349311.

1139434453 is a nontrivial binomial coefficient, being equal to C(47738, 2).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 425101924 + 714332529 = 20618^2 + 26727^2 .

It is a 3-Lehmer number, since φ(1139434453) divides (1139434453-1)3.

It is a cyclic number.

It is not a de Polignac number, because 1139434453 - 29 = 1139433941 is a prime.

It is a super-4 number, since 4×11394344534 (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139434423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 47737.

It is an arithmetic number, because the mean of its divisors is an integer number (284876515).

It is a Poulet number, since it divides 21139434452-1.

Almost surely, 21139434453 is an apocalyptic number.

1139434453 is the 47737-th triangular number and also the 23869-th hexagonal number.

1139434453 is the 15913-rd centered nonagonal number.

It is an amenable number.

1139434453 is a deficient number, since it is larger than the sum of its proper divisors (71607).

1139434453 is an equidigital number, since it uses as much as digits as its factorization.

1139434453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71606.

The product of its digits is 77760, while the sum is 37.

The square root of 1139434453 is about 33755.5099650413. The cubic root of 1139434453 is about 1044.4711511023.

The spelling of 1139434453 in words is "one billion, one hundred thirty-nine million, four hundred thirty-four thousand, four hundred fifty-three".

Divisors: 1 23869 47737 1139434453