Search a number
-
+
54208380912 = 24372374115193
BaseRepresentation
bin110010011111000100…
…100011111111110000
312011220212122001221120
4302133010203333300
51342004321142122
640523013422240
73626222430600
oct623704437760
9164825561846
1054208380912
1120a98243a04
12a60a33a980
13515b8c134a
1428a3608c00
15162407c75c
hexc9f123ff0

54208380912 has 240 divisors, whose sum is σ = 171396342432. Its totient is φ = 14700994560.

The previous prime is 54208380911. The next prime is 54208380931. The reversal of 54208380912 is 21908380245.

It is a super-2 number, since 2×542083809122 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54208380911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3560388 + ... + 3575580.

Almost surely, 254208380912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54208380912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85698171216).

54208380912 is an abundant number, since it is smaller than the sum of its proper divisors (117187961520).

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

54208380912 is a wasteful number, since it uses less digits than its factorization.

54208380912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15296 (or 15283 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 54208380912 in words is "fifty-four billion, two hundred eight million, three hundred eighty thousand, nine hundred twelve".