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12712427 = 713139697
BaseRepresentation
bin110000011111…
…100111101011
3212220212011122
4300133213223
511223244202
61132245455
7213024320
oct60374753
925825148
1012712427
1171a3042
12431088b
132831360
14198cb47
1511b19a2
hexc1f9eb

12712427 has 8 divisors (see below), whose sum is σ = 15646176. Its totient is φ = 10058112.

The previous prime is 12712409. The next prime is 12712429. The reversal of 12712427 is 72421721.

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

It is a cyclic number.

It is not a de Polignac number, because 12712427 - 210 = 12711403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12712396 and 12712405.

It is not an unprimeable number, because it can be changed into a prime (12712429) 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, 69758 + ... + 69939.

It is an arithmetic number, because the mean of its divisors is an integer number (1955772).

Almost surely, 212712427 is an apocalyptic number.

12712427 is a deficient number, since it is larger than the sum of its proper divisors (2933749).

12712427 is a wasteful number, since it uses less digits than its factorization.

12712427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139717.

The product of its digits is 1568, while the sum is 26.

The square root of 12712427 is about 3565.4490600764. The cubic root of 12712427 is about 233.3867290499.

The spelling of 12712427 in words is "twelve million, seven hundred twelve thousand, four hundred twenty-seven".

Divisors: 1 7 13 91 139697 977879 1816061 12712427