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13402801 = 101132701
BaseRepresentation
bin110011001000…
…001010110001
3221012221012001
4303020022301
511412342201
61155134001
7221631136
oct63101261
927187161
1013402801
1176247a5
1245a4301
132a13669
141acc58d
15129b301
hexcc82b1

13402801 has 4 divisors (see below), whose sum is σ = 13535604. Its totient is φ = 13270000.

The previous prime is 13402793. The next prime is 13402841. The reversal of 13402801 is 10820431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10820431 = 16764793.

It can be written as a sum of positive squares in 2 ways, for example, as 11553201 + 1849600 = 3399^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 13402801 - 23 = 13402793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13402841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66250 + ... + 66451.

It is an arithmetic number, because the mean of its divisors is an integer number (3383901).

Almost surely, 213402801 is an apocalyptic number.

It is an amenable number.

13402801 is a deficient number, since it is larger than the sum of its proper divisors (132803).

13402801 is a wasteful number, since it uses less digits than its factorization.

13402801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132802.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 13402801 is about 3660.9836109986. The cubic root of 13402801 is about 237.5373222971.

The spelling of 13402801 in words is "thirteen million, four hundred two thousand, eight hundred one".

Divisors: 1 101 132701 13402801