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26664201 = 331951977
BaseRepresentation
bin110010110110…
…1110100001001
31212011200102000
41211231310021
523311223301
62351301213
7442433124
oct145556411
955150360
1026664201
1114062233
128b1a809
1356a7845
1437813bb
15251a786
hex196dd09

26664201 has 16 divisors (see below), whose sum is σ = 41582400. Its totient is φ = 16840224.

The previous prime is 26664193. The next prime is 26664203. The reversal of 26664201 is 10246662.

It is a happy number.

It is not a de Polignac number, because 26664201 - 23 = 26664193 is a prime.

It is a super-2 number, since 2×266642012 = 1421959229936802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (26664203) 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 15 ways as a sum of consecutive naturals, for example, 25476 + ... + 26501.

It is an arithmetic number, because the mean of its divisors is an integer number (2598900).

Almost surely, 226664201 is an apocalyptic number.

It is an amenable number.

26664201 is a deficient number, since it is larger than the sum of its proper divisors (14918199).

26664201 is a wasteful number, since it uses less digits than its factorization.

26664201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52005 (or 51999 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 26664201 is about 5163.7390522760. The cubic root of 26664201 is about 298.7511081114.

The spelling of 26664201 in words is "twenty-six million, six hundred sixty-four thousand, two hundred one".

Divisors: 1 3 9 19 27 57 171 513 51977 155931 467793 987563 1403379 2962689 8888067 26664201