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57785456004 = 2234815454667
BaseRepresentation
bin110101110100010010…
…000001010110000100
312112011011112022111020
4311310102001112010
51421321034043004
642313554511140
74113656162133
oct656422012604
9175134468436
1057785456004
1122563424411
12b2482954b0
1355aba05923
142b2270b91a
1517831118d9
hexd74481584

57785456004 has 12 divisors (see below), whose sum is σ = 134832730704. Its totient is φ = 19261818664.

The previous prime is 57785455993. The next prime is 57785456009. The reversal of 57785456004 is 40065458775.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (57785456009) 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, 2407727322 + ... + 2407727345.

It is an arithmetic number, because the mean of its divisors is an integer number (11236060892).

Almost surely, 257785456004 is an apocalyptic number.

It is an amenable number.

57785456004 is an abundant number, since it is smaller than the sum of its proper divisors (77047274700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57785456004 is a wasteful number, since it uses less digits than its factorization.

57785456004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4815454674 (or 4815454672 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 51.

The spelling of 57785456004 in words is "fifty-seven billion, seven hundred eighty-five million, four hundred fifty-six thousand, four".

Divisors: 1 2 3 4 6 12 4815454667 9630909334 14446364001 19261818668 28892728002 57785456004