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57090641242 = 2144731676229
BaseRepresentation
bin110101001010110111…
…100000110101011010
312110100202010001211011
4311022313200311122
51413410201004432
642121014324134
74060521305125
oct651267406532
9173322101734
1057090641242
11222371a6838
12b09365964a
1354caa9072b
142a983233bc
151742115847
hexd4ade0d5a

57090641242 has 16 divisors (see below), whose sum is σ = 85735964160. Its totient is φ = 28512008208.

The previous prime is 57090641213. The next prime is 57090641243. The reversal of 57090641242 is 24214609075.

It is a junction number, because it is equal to n+sod(n) for n = 57090641195 and 57090641204.

It is not an unprimeable number, because it can be changed into a prime (57090641243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9162184 + ... + 9168412.

It is an arithmetic number, because the mean of its divisors is an integer number (5358497760).

Almost surely, 257090641242 is an apocalyptic number.

57090641242 is a deficient number, since it is larger than the sum of its proper divisors (28645322918).

57090641242 is a wasteful number, since it uses less digits than its factorization.

57090641242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10845.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 57090641242 in words is "fifty-seven billion, ninety million, six hundred forty-one thousand, two hundred forty-two".

Divisors: 1 2 1447 2894 3167 6229 6334 12458 4582649 9013363 9165298 18026726 19727243 39454486 28545320621 57090641242