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357130441561 = 1721007673033
BaseRepresentation
bin1010011001001101010…
…00100001001101011001
31021010211000221011100011
411030212220201031121
521322400343112221
6432021412441521
734542011444425
oct5144650411531
91233730834304
10357130441561
11128504907663
125926a3192a1
13278a5c1600a
14133dc865b85
1594530371e1
hex5326a21359

357130441561 has 4 divisors (see below), whose sum is σ = 378138114612. Its totient is φ = 336122768512.

The previous prime is 357130441489. The next prime is 357130441573. The reversal of 357130441561 is 165144031753.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 117563265625 + 239567175936 = 342875^2 + 489456^2 .

It is a cyclic number.

It is not a de Polignac number, because 357130441561 - 219 = 357129917273 is a prime.

It is a super-2 number, since 2×3571304415612 (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (357130441961) 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 3 ways as a sum of consecutive naturals, for example, 10503836500 + ... + 10503836533.

It is an arithmetic number, because the mean of its divisors is an integer number (94534528653).

Almost surely, 2357130441561 is an apocalyptic number.

It is an amenable number.

357130441561 is a deficient number, since it is larger than the sum of its proper divisors (21007673051).

357130441561 is a wasteful number, since it uses less digits than its factorization.

357130441561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21007673050.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 357130441561 in words is "three hundred fifty-seven billion, one hundred thirty million, four hundred forty-one thousand, five hundred sixty-one".

Divisors: 1 17 21007673033 357130441561