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57401003520 = 293257355909
BaseRepresentation
bin110101011101010111…
…011100111000000000
312111011101010002211100
4311131113130320000
51420024124103040
642211502414400
74101310323330
oct653527347000
9174141102740
1057401003520
1122386408593
12b15b591400
13554a178c53
142ac76330c0
15175e4beb30
hexd5d5dce00

57401003520 has 240 divisors, whose sum is σ = 227195860320. Its totient is φ = 13120192512.

The previous prime is 57401003479. The next prime is 57401003549. The reversal of 57401003520 is 2530010475.

It is a happy number.

57401003520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16675 + ... + 339234.

It is an arithmetic number, because the mean of its divisors is an integer number (946649418).

Almost surely, 257401003520 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 57401003520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113597930160).

57401003520 is an abundant number, since it is smaller than the sum of its proper divisors (169794856800).

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

57401003520 is a wasteful number, since it uses less digits than its factorization.

57401003520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355945 (or 355926 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

Adding to 57401003520 its reverse (2530010475), we get a palindrome (59931013995).

The spelling of 57401003520 in words is "fifty-seven billion, four hundred one million, three thousand, five hundred twenty".