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57473006638 = 21511759108191
BaseRepresentation
bin110101100001101010…
…000111110000101110
312111100101121020112111
4311201222013300232
51420201042203023
642222553554234
74103143332055
oct654152076056
9174311536474
1057473006638
11224130175a3
12b17b71597a
13555c069448
142ad301739c
15176599400d
hexd61a87c2e

57473006638 has 16 divisors (see below), whose sum is σ = 86830571520. Its totient is φ = 28529703000.

The previous prime is 57473006597. The next prime is 57473006639. The reversal of 57473006638 is 83660037475.

It is a happy number.

57473006638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57473006591 and 57473006600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57473006639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477123 + ... + 585313.

It is an arithmetic number, because the mean of its divisors is an integer number (5426910720).

Almost surely, 257473006638 is an apocalyptic number.

57473006638 is a deficient number, since it is larger than the sum of its proper divisors (29357564882).

57473006638 is a wasteful number, since it uses less digits than its factorization.

57473006638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110103.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 57473006638 in words is "fifty-seven billion, four hundred seventy-three million, six thousand, six hundred thirty-eight".

Divisors: 1 2 151 302 1759 3518 108191 216382 265609 531218 16336841 32673682 190307969 380615938 28736503319 57473006638