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57761535140 = 2252888076757
BaseRepresentation
bin110101110010110110…
…110001010010100100
312112002111112000020022
4311302312301102210
51421243423111030
642311342054312
74113245643041
oct656266612244
9175074460208
1057761535140
1122550976301
12b24027a398
1355a6a7b97a
142b1d4821c8
151780e88de5
hexd72db14a4

57761535140 has 12 divisors (see below), whose sum is σ = 121299223836. Its totient is φ = 23104614048.

The previous prime is 57761535133. The next prime is 57761535149. The reversal of 57761535140 is 4153516775.

It is a happy number.

57761535140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16295543716 + 41465991424 = 127654^2 + 203632^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57761535091 and 57761535100.

It is not an unprimeable number, because it can be changed into a prime (57761535149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1444038359 + ... + 1444038398.

It is an arithmetic number, because the mean of its divisors is an integer number (10108268653).

Almost surely, 257761535140 is an apocalyptic number.

It is an amenable number.

57761535140 is an abundant number, since it is smaller than the sum of its proper divisors (63537688696).

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

57761535140 is a wasteful number, since it uses less digits than its factorization.

57761535140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888076766 (or 2888076764 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 44.

The spelling of 57761535140 in words is "fifty-seven billion, seven hundred sixty-one million, five hundred thirty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2888076757 5776153514 11552307028 14440383785 28880767570 57761535140