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57673612217 = 134436431709
BaseRepresentation
bin110101101101100111…
…010111101110111001
312111212101002001122202
4311231213113232321
51421103421042332
642254521355545
74111130421014
oct655547275671
9174771061582
1057673612217
1122506283531
12b216938bb5
1355917a6280
142b1191637b
1517783bca62
hexd6d9d7bb9

57673612217 has 4 divisors (see below), whose sum is σ = 62110043940. Its totient is φ = 53237180496.

The previous prime is 57673612181. The next prime is 57673612219. The reversal of 57673612217 is 71221637675.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36638170921 + 21035441296 = 191411^2 + 145036^2 .

It is a cyclic number.

It is not a de Polignac number, because 57673612217 - 26 = 57673612153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57673612219) 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, 2218215842 + ... + 2218215867.

It is an arithmetic number, because the mean of its divisors is an integer number (15527510985).

Almost surely, 257673612217 is an apocalyptic number.

It is an amenable number.

57673612217 is a deficient number, since it is larger than the sum of its proper divisors (4436431723).

57673612217 is a wasteful number, since it uses less digits than its factorization.

57673612217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4436431722.

The product of its digits is 740880, while the sum is 47.

The spelling of 57673612217 in words is "fifty-seven billion, six hundred seventy-three million, six hundred twelve thousand, two hundred seventeen".

Divisors: 1 13 4436431709 57673612217