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26680529 = 239711959
BaseRepresentation
bin110010111000…
…1110011010001
31212012111210202
41211301303101
523312234104
62351504545
7442531541
oct145616321
955174722
1026680529
1114073527
128b28155
1356b20c5
143787321
15252051e
hex1971cd1

26680529 has 8 divisors (see below), whose sum is σ = 28129920. Its totient is φ = 25255296.

The previous prime is 26680523. The next prime is 26680559. The reversal of 26680529 is 92508662.

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 26680529 - 28 = 26680273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26680492 and 26680501.

It is not an unprimeable number, because it can be changed into a prime (26680523) 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, 3749 + ... + 8210.

It is an arithmetic number, because the mean of its divisors is an integer number (3516240).

Almost surely, 226680529 is an apocalyptic number.

It is an amenable number.

26680529 is a deficient number, since it is larger than the sum of its proper divisors (1449391).

26680529 is a wasteful number, since it uses less digits than its factorization.

26680529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12079.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 26680529 is about 5165.3198352087. The cubic root of 26680529 is about 298.8120764079.

The spelling of 26680529 in words is "twenty-six million, six hundred eighty thousand, five hundred twenty-nine".

Divisors: 1 23 97 2231 11959 275057 1160023 26680529