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26220530 = 257834513
BaseRepresentation
bin110010000000…
…1011111110010
31211100010210202
41210001133302
523203024110
62333555202
7435604460
oct144013762
954303722
1026220530
1113889966
128945b02
13558090b
1436a7830
15247e0a5
hex19017f2

26220530 has 32 divisors (see below), whose sum is σ = 54601344. Its totient is φ = 8879616.

The previous prime is 26220527. The next prime is 26220533. The reversal of 26220530 is 3502262.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26220527) and next prime (26220533).

It is not an unprimeable number, because it can be changed into a prime (26220533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3554 + ... + 8066.

It is an arithmetic number, because the mean of its divisors is an integer number (1706292).

Almost surely, 226220530 is an apocalyptic number.

26220530 is an abundant number, since it is smaller than the sum of its proper divisors (28380814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26220530 is a wasteful number, since it uses less digits than its factorization.

26220530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4610.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 26220530 is about 5120.5985978204. The cubic root of 26220530 is about 297.0848386081.

Adding to 26220530 its reverse (3502262), we get a palindrome (29722792).

The spelling of 26220530 in words is "twenty-six million, two hundred twenty thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 83 166 415 581 830 1162 2905 4513 5810 9026 22565 31591 45130 63182 157955 315910 374579 749158 1872895 2622053 3745790 5244106 13110265 26220530