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26964145 = 513414833
BaseRepresentation
bin110011011011…
…1000010110001
31212201220212001
41212313002301
523400323040
62401534001
7445122445
oct146670261
955656761
1026964145
111424761a
129044301
135781220
14381c825
15257959a
hex19b70b1

26964145 has 8 divisors (see below), whose sum is σ = 34846056. Its totient is φ = 19911936.

The previous prime is 26964137. The next prime is 26964149. The reversal of 26964145 is 54146962.

It can be written as a sum of positive squares in 4 ways, for example, as 2283121 + 24681024 = 1511^2 + 4968^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 26964145 - 23 = 26964137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26964149) by changing a digit.

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, 207352 + ... + 207481.

It is an arithmetic number, because the mean of its divisors is an integer number (4355757).

Almost surely, 226964145 is an apocalyptic number.

It is an amenable number.

26964145 is a deficient number, since it is larger than the sum of its proper divisors (7881911).

26964145 is a wasteful number, since it uses less digits than its factorization.

26964145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414851.

The product of its digits is 51840, while the sum is 37.

The square root of 26964145 is about 5192.7011275443. The cubic root of 26964145 is about 299.8671448774.

The spelling of 26964145 in words is "twenty-six million, nine hundred sixty-four thousand, one hundred forty-five".

Divisors: 1 5 13 65 414833 2074165 5392829 26964145