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122001513 = 340667171
BaseRepresentation
bin1110100010110…
…01100001101001
322111120022121120
413101121201221
5222213022023
620034525453
73010665354
oct721314151
9274508546
10122001513
11629595a7
1234a36889
131c377c5a
14122bb29b
15aa9d8e3
hex7459869

122001513 has 4 divisors (see below), whose sum is σ = 162668688. Its totient is φ = 81334340.

The previous prime is 122001511. The next prime is 122001533. The reversal of 122001513 is 315100221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122001513 - 21 = 122001511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122001492 and 122001501.

It is not an unprimeable number, because it can be changed into a prime (122001511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20333583 + ... + 20333588.

It is an arithmetic number, because the mean of its divisors is an integer number (40667172).

Almost surely, 2122001513 is an apocalyptic number.

It is an amenable number.

122001513 is a deficient number, since it is larger than the sum of its proper divisors (40667175).

122001513 is an equidigital number, since it uses as much as digits as its factorization.

122001513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40667174.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 122001513 is about 11045.4295072668. The cubic root of 122001513 is about 495.9696166460.

Adding to 122001513 its reverse (315100221), we get a palindrome (437101734).

The spelling of 122001513 in words is "one hundred twenty-two million, one thousand, five hundred thirteen".

Divisors: 1 3 40667171 122001513