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26906641 = 199911429
BaseRepresentation
bin110011010100…
…1000000010001
31212121222222021
41212221000101
523342003031
62400411441
7444463006
oct146510021
955558867
1026906641
11142083a3
129016b81
135760cb8
1438058ad
152567511
hex19a9011

26906641 has 8 divisors (see below), whose sum is σ = 28371200. Its totient is φ = 25446960.

The previous prime is 26906639. The next prime is 26906683. The reversal of 26906641 is 14660962.

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 26906641 - 21 = 26906639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26906597 and 26906606.

It is not an unprimeable number, because it can be changed into a prime (26906441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18115 + ... + 19543.

It is an arithmetic number, because the mean of its divisors is an integer number (3546400).

Almost surely, 226906641 is an apocalyptic number.

It is an amenable number.

26906641 is a deficient number, since it is larger than the sum of its proper divisors (1464559).

26906641 is a wasteful number, since it uses less digits than its factorization.

26906641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 26906641 is about 5187.1611696573. The cubic root of 26906641 is about 299.6538266262.

The spelling of 26906641 in words is "twenty-six million, nine hundred six thousand, six hundred forty-one".

Divisors: 1 19 991 1429 18829 27151 1416139 26906641