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12812108 = 224374489
BaseRepresentation
bin110000110111…
…111101001100
3220002220220112
4300313331030
511234441413
61134335152
7213621041
oct60677514
926086815
1012812108
117260a21
12435a4b8
13286783a
1419b71c8
1511d12a8
hexc37f4c

12812108 has 12 divisors (see below), whose sum is σ = 22942920. Its totient is φ = 6256992.

The previous prime is 12812087. The next prime is 12812117. The reversal of 12812108 is 80121821.

It is a happy number.

It is a super-2 number, since 2×128121082 = 328300222807328, which contains 22 as substring.

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, 37073 + ... + 37416.

It is an arithmetic number, because the mean of its divisors is an integer number (1911910).

Almost surely, 212812108 is an apocalyptic number.

It is an amenable number.

12812108 is a deficient number, since it is larger than the sum of its proper divisors (10130812).

12812108 is a wasteful number, since it uses less digits than its factorization.

12812108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74536 (or 74534 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 12812108 is about 3579.4005084651. The cubic root of 12812108 is about 233.9951541598.

Adding to 12812108 its reverse (80121821), we get a palindrome (92933929).

The spelling of 12812108 in words is "twelve million, eight hundred twelve thousand, one hundred eight".

Divisors: 1 2 4 43 86 172 74489 148978 297956 3203027 6406054 12812108