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47034458818 = 223517229409
BaseRepresentation
bin101011110011011110…
…001110001011000010
311111101220122001220021
4223303132032023002
51232311310140233
633335103404054
73253362206044
oct536336161302
9144356561807
1047034458818
1118a467a9076
1291478b362a
134587561b29
1423c2937a94
15135435ae2d
hexaf378e2c2

47034458818 has 4 divisors (see below), whose sum is σ = 70551688230. Its totient is φ = 23517229408.

The previous prime is 47034458813. The next prime is 47034458831. The reversal of 47034458818 is 81885443074.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81885443074 = 240942721537.

It can be written as a sum of positive squares in only one way, i.e., 25874974449 + 21159484369 = 160857^2 + 145463^2 .

It is not an unprimeable number, because it can be changed into a prime (47034458813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11758614703 + ... + 11758614706.

Almost surely, 247034458818 is an apocalyptic number.

47034458818 is a deficient number, since it is larger than the sum of its proper divisors (23517229412).

47034458818 is a wasteful number, since it uses less digits than its factorization.

47034458818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23517229411.

The product of its (nonzero) digits is 3440640, while the sum is 52.

The spelling of 47034458818 in words is "forty-seven billion, thirty-four million, four hundred fifty-eight thousand, eight hundred eighteen".

Divisors: 1 2 23517229409 47034458818