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54881388503040 = 213351128594297
BaseRepresentation
bin11000111101010000100011…
…01010101010000000000000
321012022121110022211001011010
430132220101222222000000
524143134040424044130
6312420054541520520
714363022653200551
oct1436502152520000
9235277408731133
1054881388503040
111653a080067400
1261a4469b73140
1324813a61845c8
14d7a3b8206328
156528ce24e0b0
hex31ea11aaa000

54881388503040 has 672 divisors, whose sum is σ = 193295247526080. Its totient is φ = 13285997936640.

The previous prime is 54881388502981. The next prime is 54881388503101. The reversal of 54881388503040 is 4030588318845.

It is a super-2 number, since 2×548813885030402 (a number of 28 digits) contains 22 as substring.

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, 12772022172 + ... + 12772026468.

It is an arithmetic number, because the mean of its divisors is an integer number (287641737390).

Almost surely, 254881388503040 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 54881388503040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96647623763040).

54881388503040 is an abundant number, since it is smaller than the sum of its proper divisors (138413859023040).

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

54881388503040 is a wasteful number, since it uses less digits than its factorization.

54881388503040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212 (or 5177 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 57.

The spelling of 54881388503040 in words is "fifty-four trillion, eight hundred eighty-one billion, three hundred eighty-eight million, five hundred three thousand, forty".