Search a number
-
+
108285667780 = 2256618191049
BaseRepresentation
bin110010011011001010…
…1000010100111000100
3101100111121120212200011
41210312111002213010
53233232112332110
6121425025400004
710552263663223
oct1446625024704
9340447525604
10108285667780
1141a18488a24
1218ba0799004
13a2992a2c44
14535364acba
152c3b86248a
hex19365429c4

108285667780 has 24 divisors (see below), whose sum is σ = 227743954200. Its totient is φ = 43248733440.

The previous prime is 108285667769. The next prime is 108285667801. The reversal of 108285667780 is 87766582801.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 59419912644 + 48865755136 = 243762^2 + 221056^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4082305 + ... + 4108744.

It is an arithmetic number, because the mean of its divisors is an integer number (9489331425).

Almost surely, 2108285667780 is an apocalyptic number.

108285667780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108285667780 is an abundant number, since it is smaller than the sum of its proper divisors (119458286420).

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

108285667780 is a wasteful number, since it uses less digits than its factorization.

108285667780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8191719 (or 8191717 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 108285667780 in words is "one hundred eight billion, two hundred eighty-five million, six hundred sixty-seven thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 661 1322 2644 3305 6610 13220 8191049 16382098 32764196 40955245 81910490 163820980 5414283389 10828566778 21657133556 27071416945 54142833890 108285667780