Search a number
-
+
122530513 = 7144712097
BaseRepresentation
bin1110100110110…
…10101011010001
322112120012021011
413103122223101
5222331434023
620054130521
73015330550
oct723325321
9275505234
10122530513
116318aa96
1235050a41
131c501981
14123b7d97
15ab5550d
hex74daad1

122530513 has 8 divisors (see below), whose sum is σ = 140143232. Its totient is φ = 104944896.

The previous prime is 122530459. The next prime is 122530559. The reversal of 122530513 is 315035221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122530513 - 213 = 122522321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122530313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4081 + ... + 16177.

It is an arithmetic number, because the mean of its divisors is an integer number (17517904).

Almost surely, 2122530513 is an apocalyptic number.

It is an amenable number.

122530513 is a deficient number, since it is larger than the sum of its proper divisors (17612719).

122530513 is a wasteful number, since it uses less digits than its factorization.

122530513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13551.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 122530513 is about 11069.3501615949. The cubic root of 122530513 is about 496.6854264243.

Adding to 122530513 its reverse (315035221), we get a palindrome (437565734).

The spelling of 122530513 in words is "one hundred twenty-two million, five hundred thirty thousand, five hundred thirteen".

Divisors: 1 7 1447 10129 12097 84679 17504359 122530513