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13402806 = 233760373
BaseRepresentation
bin110011001000…
…001010110110
3221012221012020
4303020022312
511412342211
61155134010
7221631144
oct63101266
927187166
1013402806
1176247aa
1245a4306
132a13671
141acc594
15129b306
hexcc82b6

13402806 has 16 divisors (see below), whose sum is σ = 27530544. Its totient is φ = 4346784.

The previous prime is 13402793. The next prime is 13402841. The reversal of 13402806 is 60820431.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29965 + ... + 30408.

It is an arithmetic number, because the mean of its divisors is an integer number (1720659).

Almost surely, 213402806 is an apocalyptic number.

13402806 is an abundant number, since it is smaller than the sum of its proper divisors (14127738).

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

13402806 is a wasteful number, since it uses less digits than its factorization.

13402806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60415.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 13402806 is about 3660.9842938751. The cubic root of 13402806 is about 237.5373518354.

The spelling of 13402806 in words is "thirteen million, four hundred two thousand, eight hundred six".

Divisors: 1 2 3 6 37 74 111 222 60373 120746 181119 362238 2233801 4467602 6701403 13402806