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152040517 = 532868689
BaseRepresentation
bin10010000111111…
…11010001000101
3101121002110101021
421003333101011
5302410244032
623030431141
73524215546
oct1103772105
9347073337
10152040517
1178906322
1242b024b1
1325664905
141629a4cd
15d534097
hex90ff445

152040517 has 4 divisors (see below), whose sum is σ = 154909260. Its totient is φ = 149171776.

The previous prime is 152040439. The next prime is 152040521. The reversal of 152040517 is 715040251.

152040517 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, and also an emirpimes, since its reverse is a distinct semiprime: 715040251 = 886380677.

It can be written as a sum of positive squares in 2 ways, for example, as 57289761 + 94750756 = 7569^2 + 9734^2 .

It is a cyclic number.

It is not a de Polignac number, because 152040517 - 219 = 151516229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152040491 and 152040500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152041517) 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, 1434292 + ... + 1434397.

It is an arithmetic number, because the mean of its divisors is an integer number (38727315).

Almost surely, 2152040517 is an apocalyptic number.

It is an amenable number.

152040517 is a deficient number, since it is larger than the sum of its proper divisors (2868743).

152040517 is an equidigital number, since it uses as much as digits as its factorization.

152040517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868742.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 152040517 is about 12330.4710777813. The cubic root of 152040517 is about 533.7277446675.

Adding to 152040517 its reverse (715040251), we get a palindrome (867080768).

The spelling of 152040517 in words is "one hundred fifty-two million, forty thousand, five hundred seventeen".

Divisors: 1 53 2868689 152040517