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12620467 = 89141803
BaseRepresentation
bin110000001001…
…001010110011
3212202012000201
4300021022303
511212323332
61130300031
7212162236
oct60111263
925665021
1012620467
11713aa42
124287617
1327cb542
14196741d
1511945e7
hexc092b3

12620467 has 4 divisors (see below), whose sum is σ = 12762360. Its totient is φ = 12478576.

The previous prime is 12620437. The next prime is 12620479. The reversal of 12620467 is 76402621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76402621 = 339122531.

It is a cyclic number.

It is not a de Polignac number, because 12620467 - 27 = 12620339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12620407) 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, 70813 + ... + 70990.

It is an arithmetic number, because the mean of its divisors is an integer number (3190590).

Almost surely, 212620467 is an apocalyptic number.

12620467 is a deficient number, since it is larger than the sum of its proper divisors (141893).

12620467 is an equidigital number, since it uses as much as digits as its factorization.

12620467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141892.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 12620467 is about 3552.5296620859. The cubic root of 12620467 is about 232.8226037715.

The spelling of 12620467 in words is "twelve million, six hundred twenty thousand, four hundred sixty-seven".

Divisors: 1 89 141803 12620467