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57709081122 = 237113143831129
BaseRepresentation
bin110101101111101110…
…101011001000100010
312111221211211001211220
4311233232223020202
51421142011043442
642302225515510
74112041044630
oct655756531042
9174854731756
1057709081122
11225242a9880
12b2267a2b96
135598c445a4
142b1650a350
15177b576eec
hexd6fbab222

57709081122 has 256 divisors, whose sum is σ = 153961758720. Its totient is φ = 13985395200.

The previous prime is 57709081117. The next prime is 57709081139. The reversal of 57709081122 is 22118090775.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 51114654 + ... + 51115782.

It is an arithmetic number, because the mean of its divisors is an integer number (601413120).

Almost surely, 257709081122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57709081122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76980879360).

57709081122 is an abundant number, since it is smaller than the sum of its proper divisors (96252677598).

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

57709081122 is a wasteful number, since it uses less digits than its factorization.

57709081122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309.

The product of its (nonzero) digits is 70560, while the sum is 42.

The spelling of 57709081122 in words is "fifty-seven billion, seven hundred nine million, eighty-one thousand, one hundred twenty-two".