Search a number
-
+
54051509880 = 233251273473407
BaseRepresentation
bin110010010101101110…
…001001011001111000
312011111221110012100100
4302111232021121320
51341144141304010
640455251235400
73622306152624
oct622556113170
9164457405310
1054051509880
1120a17739425
12a5858a8b60
135135257b54
14288a852184
1516153e22c0
hexc95b89678

54051509880 has 192 divisors, whose sum is σ = 177612963840. Its totient is φ = 14254845696.

The previous prime is 54051509879. The next prime is 54051509921. The reversal of 54051509880 is 8890515045.

It is a happy number.

54051509880 is a `hidden beast` number, since 5 + 40 + 515 + 0 + 98 + 8 + 0 = 666.

54051509880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×540515098802 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15863137 + ... + 15866543.

It is an arithmetic number, because the mean of its divisors is an integer number (925067520).

Almost surely, 254051509880 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 54051509880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88806481920).

54051509880 is an abundant number, since it is smaller than the sum of its proper divisors (123561453960).

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

54051509880 is a wasteful number, since it uses less digits than its factorization.

54051509880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898 (or 3891 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The spelling of 54051509880 in words is "fifty-four billion, fifty-one million, five hundred nine thousand, eight hundred eighty".