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12820414 = 217377071
BaseRepresentation
bin110000111001…
…111110111110
3220010100022011
4300321332332
511240223124
61134441434
7213654205
oct60717676
926110264
1012820414
117267192
12436327a
13286b559
1419ba23c
1511d3994
hexc39fbe

12820414 has 8 divisors (see below), whose sum is σ = 20361888. Its totient is φ = 6033120.

The previous prime is 12820373. The next prime is 12820427. The reversal of 12820414 is 41402821.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188502 + ... + 188569.

It is an arithmetic number, because the mean of its divisors is an integer number (2545236).

Almost surely, 212820414 is an apocalyptic number.

12820414 is a deficient number, since it is larger than the sum of its proper divisors (7541474).

12820414 is a wasteful number, since it uses less digits than its factorization.

12820414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377090.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 12820414 is about 3580.5605706369. The cubic root of 12820414 is about 234.0457090438.

The spelling of 12820414 in words is "twelve million, eight hundred twenty thousand, four hundred fourteen".

Divisors: 1 2 17 34 377071 754142 6410207 12820414