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26872859 = 132198369
BaseRepresentation
bin110011010000…
…0110000011011
31212120021122002
41212200300123
523334412414
62355551215
7444262346
oct146406033
955507562
1026872859
1114194a82
128bbb50b
13574b800
1437d745d
15255c4de
hex19a0c1b

26872859 has 12 divisors (see below), whose sum is σ = 30634200. Its totient is φ = 23497344.

The previous prime is 26872849. The next prime is 26872871. The reversal of 26872859 is 95827862.

It is not a de Polignac number, because 26872859 - 212 = 26868763 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26872849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 974 + ... + 7395.

It is an arithmetic number, because the mean of its divisors is an integer number (2552850).

Almost surely, 226872859 is an apocalyptic number.

26872859 is a deficient number, since it is larger than the sum of its proper divisors (3761341).

26872859 is a wasteful number, since it uses less digits than its factorization.

26872859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8414 (or 8401 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 26872859 is about 5183.9038378427. The cubic root of 26872859 is about 299.5283663349.

The spelling of 26872859 in words is "twenty-six million, eight hundred seventy-two thousand, eight hundred fifty-nine".

Divisors: 1 13 19 169 247 3211 8369 108797 159011 1414361 2067143 26872859