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12422015 = 515116453
BaseRepresentation
bin101111011000…
…101101111111
3212101002210122
4233120231333
511140001030
61122125155
7210404534
oct57305577
925332718
1012422015
117014931
1241b07bb
13275c108
141914d8b
1511558e5
hexbd8b7f

12422015 has 8 divisors (see below), whose sum is σ = 15006048. Its totient is φ = 9871200.

The previous prime is 12422009. The next prime is 12422023. The reversal of 12422015 is 51022421.

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

It is a de Polignac number, because none of the positive numbers 2k-12422015 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12421984 and 12422002.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7472 + ... + 8981.

It is an arithmetic number, because the mean of its divisors is an integer number (1875756).

Almost surely, 212422015 is an apocalyptic number.

12422015 is a deficient number, since it is larger than the sum of its proper divisors (2584033).

12422015 is a wasteful number, since it uses less digits than its factorization.

12422015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16609.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12422015 is about 3524.4879060652. The cubic root of 12422015 is about 231.5958020981.

Adding to 12422015 its reverse (51022421), we get a palindrome (63444436).

The spelling of 12422015 in words is "twelve million, four hundred twenty-two thousand, fifteen".

Divisors: 1 5 151 755 16453 82265 2484403 12422015