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57744877772 = 2217849189379
BaseRepresentation
bin110101110001110111…
…001110100011001100
312112001100011201121202
4311301313032203030
51421230142042042
642305545045032
74112654235221
oct656167164314
9175040151552
1057744877772
112254252938a
12b236786778
1355a3498b3a
142b1b187948
15177e798632
hexd71dce8cc

57744877772 has 12 divisors (see below), whose sum is σ = 106997861880. Its totient is φ = 27174060096.

The previous prime is 57744877769. The next prime is 57744877781. The reversal of 57744877772 is 27777844775.

It is a junction number, because it is equal to n+sod(n) for n = 57744877699 and 57744877708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424594622 + ... + 424594757.

It is an arithmetic number, because the mean of its divisors is an integer number (8916488490).

Almost surely, 257744877772 is an apocalyptic number.

It is an amenable number.

57744877772 is a deficient number, since it is larger than the sum of its proper divisors (49252984108).

57744877772 is a wasteful number, since it uses less digits than its factorization.

57744877772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849189400 (or 849189398 counting only the distinct ones).

The product of its digits is 150590720, while the sum is 65.

The spelling of 57744877772 in words is "fifty-seven billion, seven hundred forty-four million, eight hundred seventy-seven thousand, seven hundred seventy-two".

Divisors: 1 2 4 17 34 68 849189379 1698378758 3396757516 14436219443 28872438886 57744877772