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57472473247 = 71942512
BaseRepresentation
bin110101100001101000…
…000101100010011111
312111100100121010212021
4311201220011202133
51420200423120442
642222534321011
74103135651020
oct654150054237
9174310533767
1057472473247
1122412792882
12b17b4b9167
13555bc10727
142ad2d18c47
1517658dae67
hexd61a0589f

57472473247 has 30 divisors (see below), whose sum is σ = 69609167464. Its totient is φ = 46483443000.

The previous prime is 57472473221. The next prime is 57472473259. The reversal of 57472473247 is 74237427475.

It is not a de Polignac number, because 57472473247 - 215 = 57472440479 is a prime.

It is a super-2 number, since 2×574724732472 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57472473194 and 57472473203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57472473277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 228973872 + ... + 228974122.

Almost surely, 257472473247 is an apocalyptic number.

57472473247 is a deficient number, since it is larger than the sum of its proper divisors (12136694217).

57472473247 is an frugal number, since it uses more digits than its factorization.

57472473247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 277 counting only the distinct ones).

The product of its digits is 9219840, while the sum is 52.

The spelling of 57472473247 in words is "fifty-seven billion, four hundred seventy-two million, four hundred seventy-three thousand, two hundred forty-seven".

Divisors: 1 7 19 133 251 361 1757 2527 4769 6859 33383 48013 63001 90611 130321 441007 634277 912247 1197019 1721609 8379133 12051263 22743361 32710571 159203527 228973997 432123859 3024867013 8210353321 57472473247