Search a number
-
+
47720204808388 = 2271704293028871
BaseRepresentation
bin10101101100110101110011…
…10110110011000011000100
320020222000012010021222222021
422312122321312303003010
522223321434412332023
6245254205350212524
713023446106136330
oct1266327166630304
9206860163258867
1047720204808388
1114229030607662
1254285b4054144
132081cc42b6738
14bad9551b27c0
1557b4a31e835d
hex2b66b9db30c4

47720204808388 has 12 divisors (see below), whose sum is σ = 95440409616832. Its totient is φ = 20451516346440.

The previous prime is 47720204808371. The next prime is 47720204808457. The reversal of 47720204808388 is 88380840202774.

47720204808388 is an admirable number.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852146514408 + ... + 852146514463.

Almost surely, 247720204808388 is an apocalyptic number.

It is an amenable number.

47720204808388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47720204808388 is a wasteful number, since it uses less digits than its factorization.

47720204808388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704293028882 (or 1704293028880 counting only the distinct ones).

The product of its (nonzero) digits is 38535168, while the sum is 61.

The spelling of 47720204808388 in words is "forty-seven trillion, seven hundred twenty billion, two hundred four million, eight hundred eight thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 1704293028871 3408586057742 6817172115484 11930051202097 23860102404194 47720204808388