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45487078453 = 163279061831
BaseRepresentation
bin101010010111001111…
…011011110000110101
311100102001222000002101
4222113033123300311
51221124143002303
632521345542101
73200132534035
oct522717336065
9140361860071
1045487078453
11183222a7323
128995644931
13439bac094b
1422b721d8c5
1512b35a2d1d
hexa973dbc35

45487078453 has 4 divisors (see below), whose sum is σ = 45766140448. Its totient is φ = 45208016460.

The previous prime is 45487078451. The next prime is 45487078477. The reversal of 45487078453 is 35487078454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45487078453 - 21 = 45487078451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45487078394 and 45487078403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45487078451) 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, 139530753 + ... + 139531078.

It is an arithmetic number, because the mean of its divisors is an integer number (11441535112).

Almost surely, 245487078453 is an apocalyptic number.

It is an amenable number.

45487078453 is a deficient number, since it is larger than the sum of its proper divisors (279061995).

45487078453 is a wasteful number, since it uses less digits than its factorization.

45487078453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279061994.

The product of its (nonzero) digits is 15052800, while the sum is 55.

Subtracting from 45487078453 its reverse (35487078454), we obtain a palindrome (9999999999).

The spelling of 45487078453 in words is "forty-five billion, four hundred eighty-seven million, seventy-eight thousand, four hundred fifty-three".

Divisors: 1 163 279061831 45487078453