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58153217681 = 134473324437
BaseRepresentation
bin110110001010001100…
…111010111010010001
312120002210112112200002
4312022030322322101
51423044210431211
642414253135345
74126043123456
oct661214727221
9176083475602
1058153217681
1122731a80189
12b32b48a555
135639c6a4a0
142b594bd82d
1517a555803b
hexd8a33ae91

58153217681 has 4 divisors (see below), whose sum is σ = 62626542132. Its totient is φ = 53679893232.

The previous prime is 58153217671. The next prime is 58153217699. The reversal of 58153217681 is 18671235185.

58153217681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15585275281 + 42567942400 = 124841^2 + 206320^2 .

It is a cyclic number.

It is not a de Polignac number, because 58153217681 - 214 = 58153201297 is a prime.

It is a super-2 number, since 2×581532176812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (58153217611) 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, 2236662206 + ... + 2236662231.

It is an arithmetic number, because the mean of its divisors is an integer number (15656635533).

Almost surely, 258153217681 is an apocalyptic number.

It is an amenable number.

58153217681 is a deficient number, since it is larger than the sum of its proper divisors (4473324451).

58153217681 is a wasteful number, since it uses less digits than its factorization.

58153217681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4473324450.

The product of its digits is 403200, while the sum is 47.

The spelling of 58153217681 in words is "fifty-eight billion, one hundred fifty-three million, two hundred seventeen thousand, six hundred eighty-one".

Divisors: 1 13 4473324437 58153217681