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57191458573 = 192158425093
BaseRepresentation
bin110101010000111000…
…000110011100001101
312110121202211010012101
4311100320012130031
51414112003133243
642135015235101
74063154243164
oct652070063415
9173552733171
1057191458573
11222890a6347
12b101378a91
13551592c262
142aa78883db
15174adcc54d
hexd50e0670d

57191458573 has 6 divisors (see below), whose sum is σ = 60359960814. Its totient is φ = 54181381464.

The previous prime is 57191458549. The next prime is 57191458601. The reversal of 57191458573 is 37585419175.

It can be written as a sum of positive squares in only one way, i.e., 54234491689 + 2956966884 = 232883^2 + 54378^2 .

It is not a de Polignac number, because 57191458573 - 221 = 57189361421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57191458273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79212186 + ... + 79212907.

It is an arithmetic number, because the mean of its divisors is an integer number (10059993469).

Almost surely, 257191458573 is an apocalyptic number.

It is an amenable number.

57191458573 is a deficient number, since it is larger than the sum of its proper divisors (3168502241).

57191458573 is a wasteful number, since it uses less digits than its factorization.

57191458573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158425131 (or 158425112 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 55.

The spelling of 57191458573 in words is "fifty-seven billion, one hundred ninety-one million, four hundred fifty-eight thousand, five hundred seventy-three".

Divisors: 1 19 361 158425093 3010076767 57191458573