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10120812 = 2231364877
BaseRepresentation
bin100110100110…
…111001101100
3201001012010220
4212212321230
510042331222
61000531340
7152011512
oct46467154
921035126
1010120812
115792a09
123480b50
132134860
1414b64b2
15d4db5c
hex9a6e6c

10120812 has 24 divisors (see below), whose sum is σ = 25432176. Its totient is φ = 3114048.

The previous prime is 10120807. The next prime is 10120829. The reversal of 10120812 is 21802101.

It is a junction number, because it is equal to n+sod(n) for n = 10120791 and 10120800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32283 + ... + 32594.

It is an arithmetic number, because the mean of its divisors is an integer number (1059674).

Almost surely, 210120812 is an apocalyptic number.

10120812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10120812 is an abundant number, since it is smaller than the sum of its proper divisors (15311364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10120812 is a wasteful number, since it uses less digits than its factorization.

10120812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64897 (or 64895 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 10120812 is about 3181.3223665639. The cubic root of 10120812 is about 216.3076035748.

Adding to 10120812 its reverse (21802101), we get a palindrome (31922913).

It can be divided in two parts, 101 and 20812, that multiplied together give a palindrome (2102012).

The spelling of 10120812 in words is "ten million, one hundred twenty thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 64877 129754 194631 259508 389262 778524 843401 1686802 2530203 3373604 5060406 10120812