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26872385 = 59775501
BaseRepresentation
bin110011010000…
…0101001000001
31212120020222112
41212200221001
523334404020
62355545105
7444261101
oct146405101
955506875
1026872385
1114194691
128bbb195
13574b527
1437d7201
15255c2c5
hex19a0a41

26872385 has 8 divisors (see below), whose sum is σ = 32285736. Its totient is φ = 21472000.

The previous prime is 26872369. The next prime is 26872387. The reversal of 26872385 is 58327862.

It can be written as a sum of positive squares in 4 ways, for example, as 16785409 + 10086976 = 4097^2 + 3176^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26872385 - 24 = 26872369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26872387) 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, 2135 + ... + 7635.

It is an arithmetic number, because the mean of its divisors is an integer number (4035717).

Almost surely, 226872385 is an apocalyptic number.

It is an amenable number.

26872385 is a deficient number, since it is larger than the sum of its proper divisors (5413351).

26872385 is an equidigital number, since it uses as much as digits as its factorization.

26872385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6483.

The product of its digits is 161280, while the sum is 41.

The square root of 26872385 is about 5183.8581192004. The cubic root of 26872385 is about 299.5266052361.

The spelling of 26872385 in words is "twenty-six million, eight hundred seventy-two thousand, three hundred eighty-five".

Divisors: 1 5 977 4885 5501 27505 5374477 26872385